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Big Mouth

빅마우스 ‧ Drama ‧ 2022
Completed
KDramaFix
1 people found this review helpful
Jun 24, 2025
16 of 16 episodes seen
Completed 0
Overall 7.0
Story 8.0
Acting/Cast 10
Music 8.5
Rewatch Value 1.0
This review may contain spoilers

Great... Until the last episode

I was all set to give this a solid 8.5 until episode 16. What in the hell was that rushed ending?! It was anti-climatic after having had a good developing storyline.
Honestly with that ending they could've just cut Miho's character altogether. I did love their reunion in prison but the ending pissed me off. Her final scene was an absolute joke.
It was just way too rushed- a common issue I have found but this one took the cake! I really wanted to give it a higher rating as I did enjoy it, but the ending was so disappointing.
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Completed
Swatinarwal
1 people found this review helpful
Sep 18, 2022
16 of 16 episodes seen
Completed 0
Overall 9.0
Story 9.0
Acting/Cast 10
Music 10
Rewatch Value 9.0

love this drama except for the end scene

the story was quite exciting and suspenseful. however, the ending of a villain in the last 10 minutes should not be so easy and the big boss's wife deserved to live a long and happy life. And about the main character, his acting is superb and the best fit for this role. I found this drama interesting, mysterious, and full of suspense, and family bonds. Only one thing disappointed me the big boss's wife, helped her husband till her last breath. & what she got?? She left her husband in pain. The makers could do better, I would like to give 10 ratings, just because of the ending I would say 9.

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Completed
kdramaomo
1 people found this review helpful
Sep 30, 2022
16 of 16 episodes seen
Completed 0
Overall 8.5
Story 8.0
Acting/Cast 10
Music 9.0
Rewatch Value 8.0

This felt like an origin story

I am not a big fan of dramas set in prison but it was Lee Jong Suk's drama and I HAD to watch it. He has never ever let me down with his drama choices, and I am so glad that Big Mouth was no exception (despite the setting). The entire cast of the drama was incredible, it was absolutely amazing to watch. Lee Jong Suk and Kim Joo Hun stole the show. It also had great background score and cinematography, which was a great to watch on large screen.

This drama had a slow build up and layed it's cards slowly with each episode. The bad guys were bad through and through, which was frustrating to watch but promised an equally satisfying end. Something that we all waited for week after week. Unfortunately, that's where it lost me. Even though it is not a bad ending in any sense of the way, it was still not the pay off we were waiting for.

Regardless... It was fun to watch Lee Jong Suk learn to be in power and figure out who big mouse can be in the process. Im Yoon Ah, Kwak Dong Yeon, Ok Ja Yeon were also a pleasure to watch. I really liked how Im Yoon Ah was also given equally powerful storyline and they let her shine on her own throughout the drama.

If you are looking to watch a drama in this type of genre I definitely recommend it. It was a good watch. Great acting, great story and Lee Jong Suk looked *chef's kiss* as always

-- MILD SPOILER WARNING --

Like I said, the story was building up to something for at least first 10 episodes. So I was waiting to pick up its pace and Lee Jong Suk to dance on top of these evil people's head by the end of this show.. so I don't know why and how Lee Jong Suk's character ended up behaving like a puppet while people around him did stuff for him. Even Im Yoon Ah's character did more than he did by the end while he sat and watched.

It unfortunate because his character started with being a puppet to the situation he got sucked in and ended up being a background character in his own show (even when he was on the screen for 80% of the drama). He was just *there* and that's where the show lost me along with its main character. Instead of letting him shine, they let him sit around and do nothing.

There were so many lose ends, charcters, and storyline that were introduced in the drama but nothing came of most of it. For instance: what happened to the serial killer dude? They dropped his name so often I was wondering when he will come and how they manage him along with everything else by the end? Also, they killed off charcters in the first half and literally forgot they existed by the end.

The death of doctor dude even started the story and I don't even remember what happened to him. Same with the wife killer who didn't even get punishment for his crime. What was even the point.

By the last 10 mins the drama still had major chunk of the loose ends and they just showed it all in montage??? like??? That was at least a 4 more episode pay off. While Lee Jong Suk did something, but unfortunately he did nothing. Even the main villain didn't get the end he deserved. It was unfortunate.

I really hope they bring serial killer dude as a main villain in the next season and I hope there is one. This drama felt like an origin story of Park Chang Ho. He was a victim of circumstances and random people doing things for/to him. Why did he not get to shine in his own show?

They need a new season to actually show the concept of Big Mouse (which was not shown at all in my opinion). Obviously, like everyone, I hate how they had to kill off one of the main characters in the last ep. But I think it was needed in order to give Chang Ho the story back as he had become a side charcter in his own drama. I just wish they make a new season with new characters and let Lee Jong Suk shine for all of it.

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Completed
OdeK
1 people found this review helpful
Oct 9, 2022
16 of 16 episodes seen
Completed 0
Overall 8.0
Story 8.0
Acting/Cast 10
Music 7.0
Rewatch Value 5.0
This review may contain spoilers

Rushed Ending

Reasons why you should watch this:
1. The Cast. There were no weak links and Lee Jong Suk & Yoona's chemistry + acting really hit it out of the park! I loved Kim Joo Heon in previous projects so I was excited to see him get a meatier role...his acting was amazing because I hated his guts in the 2nd half of the series.
2. I would love to see Yoona act as a mafia boss. She looked incredibly cool in that fish farm scene!
3. The death of a major character. It always has so much more emotional impact than writing off a minor character. It was rushed though. I don't know if it's because they were vague with the timeline, but one of the main characters seemed to die off waaaay faster than all the other people with the same illness did.
4. Redemption arcs. I think only 2 characters redeemed themselves, but boy was the journey worth it! I went from hating Gong Ji Hoon for the majority of the series to rooting for him.
5. No silly love triangle. Just a married couple who commit to loving each other through thick & thin. Also, a huge plus is the supportive wife trope!

Cons:
1. Suuuuper rushed ending. Literally wrapped the whole series up in 6 mins. Didn't even really get to see the bad guy suffer.
2. Middle episodes dragged a bit. Maybe if they didn't spend so long on dragging out the plot, they've would've given a carefully plot out finale.
3. The amount of times LJS had to scream "Who are you?" or some iteration of it. Do the writers really think it adds value? Which villain would voluntarily offer up their identity? I also got super fed up with all his arrogance in the prison. As if he could really outsmart Big Mouse. I was confused by all his "traps" for Big Mouse -- did anyone understand what he was trying to do? They didn't really explain what he did exactly besides calling them "traps".
4. The long buildup & quick resolution (I'm thinking it's characteristic of this drama). The writers constantly reminded us that the prison warden was against the new Big Mouse, yet he was suddenly on Big Mouse's side without complaint. I thought I missed an episode or something.

Overall: great acting, potentially great script if they didn't fall short here and there (especially when it counts, aka the finale), but no explanation for big moves & the lightning quick resolutions after extended buildups.

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Completed
champagneproblems
1 people found this review helpful
Oct 28, 2024
16 of 16 episodes seen
Completed 0
Overall 7.5
Story 7.0
Acting/Cast 9.0
Music 3.0
Rewatch Value 5.0

Strong start, rushed ending.

Big Mouth begins with a strong premise and engaging suspense, but several elements weaken the overall impact of the series. The death of the female lead feels unnecessary and does not add to the storyline. Her character was portrayed as intelligent and resilient, playing a key role in moving the "operation" forward. Her death comes across as forced and seems included primarily for shock.

After the reveal of Big Mouse’s identity, the momentum of the series declines. Although the storyline remains engaging, the initial drive diminishes and the series increasingly relies on additional plot twists to maintain viewer interest.

The ending is also rushed and overly simplistic, especially given the plotlines developed throughout the series.

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Completed
Diziyuanhanye
1 people found this review helpful
Sep 18, 2022
16 of 16 episodes seen
Completed 0
Overall 7.5
Story 7.5
Acting/Cast 9.5
Music 3.0
Rewatch Value 5.5

big mouse a scam drama

big mouse was amazing in the first half , it made the audience thrilled and root for the protagonists to destroy the villain then after he got out from jail everything went downhill even lee jong suk acting lost it spark it was like he was a fashion model making his runway here and there, it felt like he was not emotionally invested what surprised was yoona on the other hand she started clumsily but from ep 3 till the finale , its as if she was possesed by go miho , the devotion, the love and longing that she showed was remarkable honeslty i never finished one of her dramas but i will surely check her upcoming works .she is one of my fave idol actress now along with iu and eunji. the rest of cas were good too.
as for the music it was bland.
story was a scam, miho s death is all i remember now. no big mouse

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Completed
maritagp
1 people found this review helpful
May 5, 2023
16 of 16 episodes seen
Completed 0
Overall 8.5
Story 7.0
Acting/Cast 10
Music 8.0
Rewatch Value 9.0
This review may contain spoilers

Everything was going according to plan until it wasn't

This drama had the right pacing up until the last episode. Now I will spoil things here so please don't read if you want to go in completely blind into this show.

The premise, the characters and twists were so incredibly fun to watch. This was a true binge worthy show, as in I couldn't help butt click next episode from the start.

ML is just impossible not to root for. At the start he's just a good guy, if a bit naive, in a bad situation and you genuinly feel for him and want him and his family to be ok. He actually stays genuinly good just not so gullible anymore. That is just so refreshing to see. It would have been so easy to make him become an evil crimelord but he stayed true to his nature and I loved that. In fact I have no qualms that his ending is not 100% happy.

But the ending of this show was just really rushed. The resolution of all lose ends was presented to us, the audience, in a sort of montage right after everything went wrong and it felt jarring. I wish they had given us a proper resolution of things. Because even if the loose ends were tied up in some way or another, because it's just a series of scenes presented to us, we don't have time to process or feel satisfaction. It was like having this delicious entres and when we were ready for the main course they just shoved it down our throats in like five minutes. It was truly a failure in 'show don't tell'. This was what we were waiting for, for every bad guy to lose and us to saviour it. You made us watch poor ML suffer, get beaten, tortured, drugged, kidnapped, framed and lose the most precious thing to him and you're not going to let us see the motherf responsible people rightfully get their just desserts for more than 2 minutes? Um no. I want to see that happen in slow motion, thanks.

This rating is because of everything that happened before the resolution. The series is good, and I overly enjoyed it. I do not think the ending ruins it. But it could have been another Flower of Evil level sort of series if they had handled the ending better. Just so close it's upsetting they missed the mark by a bit.

Overall this show is so so good and addictive and every character is amazing, but that ending, even if it's positive was not handled properly.

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Completed
sidra
1 people found this review helpful
Feb 1, 2026
16 of 16 episodes seen
Completed 0
Overall 8.0
Story 8.0
Acting/Cast 7.5
Music 8.0
Rewatch Value 7.5

appreciating drama!

Honestly, Big Mouth was a great drama. What I liked most were the plot twists. There were many moments when I thought I understood what was happening, only for the story to completely change. It kept things exciting and made it hard to stop watching.

The story felt smart and tense. I appreciated how it gradually revealed the truth instead of giving everything away all at once. The characters were interesting, and I found myself constantly guessing whom to trust and who was really in control.

Overall, it’s one of those dramas that keeps you on edge and makes you want to click “next episode” immediately. It’s definitely worth watching if you enjoy thrillers with a lot of twists.

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Completed
Miriam065887
1 people found this review helpful
Sep 17, 2022
16 of 16 episodes seen
Completed 0
Overall 7.5
Story 7.0
Acting/Cast 9.0
Music 6.0
Rewatch Value 7.0
This review may contain spoilers

Enjoyed it, but ending felt a bit rushed.

I just finished watching the last episode and I enjoyed it!

Likes:
- Park Chang Ho (Lee Jong Suk)'s acting (OF COURSEE!!!)
- I liked that the kept the drama realistic, in the ending, when the wife died, it made sense because she had last stage cancer, and it would have been really unrealistic for her to not have died, it was sad though
- Storyline wasn't too bad i guess,

Dislikes:
- The first episode I didn't really like, but afterwards it did get better
- ngl kinda still wish Jerry was Big Mouth ? buttttt its okay
- Kinda felt like the ending was rushed, like sooo much happed at the end, things that I wish would have happened instead over 2 epsiodes instead of one
- also felt like Choi Do Ha deserved a worser punishment then death, idk, i feel like death was the easy way out. Like he tortured people, putting them in a mental place, his wife also, so kinda wish he wasn't killed to live out his punishement
- wish they didn't drag it soo long to reveal who Big Mouth was, and it was annoying that right after finding out who he was, he died, they might as well have made Chang Ho big mouth from the beginning
- Really wish the relationship between the two main lead was developed more, like more scenes between them, idk

Overall:
Definately enjoyed it, and of course the acting was really good. Wouldn't say its on my top list of rated dramas, but i enjoyed it. Soo happy to see Lee Jung Suk back in action again :)

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Completed
dprofitt
1 people found this review helpful
Jan 8, 2023
16 of 16 episodes seen
Completed 0
Overall 10
Story 10
Acting/Cast 10
Music 10
Rewatch Value 10
This review may contain spoilers

Solid show!

Just saw Big Mouth on Hulu.

Fantastic show.

This show puts the "H" in hybrid: crime thriller, legal drama, prison drama, medical drama, political drama and chaebol drama. I've never seen so many genres packed into a single show and it does it so well. The first few episodes move slowly as they're setting up the characters, but then it turns into a rollercoaster with so many twists and turns that you're on the edge of your seat to watch the next episode. I found the ending to be very satisfying, especially the last 10 minutes.

Lee Jong-Suk and Yoon-ah of SNSD do fantastic work here and Kim Joo-hun gives an amazing performance.

Highest recommendations!

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Completed
Anais
1 people found this review helpful
Sep 17, 2022
16 of 16 episodes seen
Completed 0
Overall 8.0
Story 8.0
Acting/Cast 8.0
Music 7.0
Rewatch Value 8.0

Very much entertaining.

It's basically the story of Park Changho, a lawyer who is, we can say it, a loser in his job. He is a talkative person and, because of this people call him Big Mouth. He is involved in a murder case and he is somehow accused of being the criminal genius Big Mouse. Due to this, Park Changho ends up in jail.
Meanwhile, Go Miho who is Park Changho’s wife attempts to clear her husband's name.

I'll be honest here, I must say that this kind of show is really great to follow when they are airing, because not only despite the wait it's so much fun to try to guess who is the mysterious antagonist, but it's great to exchange so positively on MDL, week after week with those who like me followed the series. I love that this series managed to make us ask every week who Big Mouse is instead of us being able to guess it easily.

Big Mouth is more light-hearted type of thriller, there definitively more a family and romance theme even though they don't take much space, the production had rather intense tones while having also darker tones.

As for history itself, I think it is separated into two distinct parts.
The first where our protagonists meet, the situation and mysteries unfold, we learn more about Big Mouse. Then, there is the second part, where Big Mouse is revealed and the events accelerate for the conclusion with the development of several storylines at the same time.

I must say that there were a little criticism for part two coming from some viewers and I think it comes from the revelation of Big Mouse. The thing is, we are tricked by the show several times thinking that a character is Big Mouse when they are not, thus when the real Big Mouse appeared, people have continued to theorize on who is Big Mouse even afterward because for them, the revelation was disappointing, they couldn't believe it.
I'm going to be honest, in terms of script writing, the Big Mouse that we have revealed does make sense. On the other hand, in terms of character, I expected someone more charismatic to be honest. And this is where I realized that the series ultimately was not about "Who" is Big Mouse, but how it will link with Park Changho.
The series made us understand, and this from the start, that Big Mouse in truth is replacable, everyone could be Big Mouse, what is more interesting is how we go from there and how our main character blends in all of this. I don't want to give spoilers, but we quickly understand how the series will evolve after the revelation of Big Mouse.

This series is a "general public" thriller, although there are many elements of thrillers, it is still the genre that can be enjoyed by everyone and very entertaining. Now, the entertaining side is double-edged because clearly, that reduces realism.
There are so many scenes which are well played but which are purely fiction. While the series like "Through The Darkness" released this year, may be come across as less "entertaining", but it is a dark thriller filled with realism, it is not for all audiences. Same for "Insider", who by the way, has a lot of similarity with Big Mouth in the storyline, and the series is much more violent, with the inclusion of striking scenes of realism. These are thrillers that are not targeted or made for all audiences, I think Big Mouth is made for everyone despite certain scenes, and therefore its very entertaining aspect.

If I had to talk about the series, I would say that this one of the most captivating series of this year, we have been hooked from the start to the end, the writers did an excellent job to make us theorize during several episodes the hidden identity of a criminal, and not to mention the side storylines.
So I think that with Insider, Through the Darkness, King of Pigs, this might be among the best thriller series I saw this year - so far, maybe not the number one spot - but my opinion is biased by the fact that I like dark thrillers - but this series is definitely not to be missed.

Now, the acting et characters. Park Chang Ho is typically a character that will evolves quite quickly - maybe a bit too quickly for my taste, the evolution of his character is really entertaining though and it's one of the best highlights during the first episodes, we certainly don't get bored.
I want to mention Lee Jong Suk's acting, it's an actor that amazes me the more I discover him, and his roles are really varied in general. Here, his versatility was really incredible, he was able to show us many sides to his character, which I really enjoyed.

Also, I would like to mention Im Yoona, and although she didn't have as much depth as Lee Jong Suk, she managed to shine, and for once, I didn't dislike the female lead, she was able to be both strong and vulnerable, she was loyal, fierce and her character is really solid and consistent throughout the series, she supported Lee Jong Suk's character really well.

As for the rest of the cast, we have everything, endearing, captivating, detestable, funny, evil characters. No one, even the minor roles let us indifferent, we either love or hate them, but they are making us react to them.

Also, this series managed to make me hate characters that I loved at the beginning, and make me love characters that I hated at first, which to be honest is rare because I usually get dead set on my opinion on the characters. First examples, Jihoon and Doha. Jihoon is quite detestable at the beginning, and I must say that in truth, after a little hindsight, he was not that bad, just very determined. As for Doha, he is a fascinating character, and I didn't like to hate him in the end but he showed, I think the most change and complexity than all the characters in the series, even more than Park Changho.

Lastly, for part 2, because as I said, instead of revealing mysteries, the series created others plots, which at that time I thought was in preparation for season 2 or additional episodes, but no. So the only negative criticism I have is about the last two episodes. They wrapped up things poorly and quickly while the series was so well crafted until this point. The end was done in a matter of minutes, also they introduced the possibility for another character but in the end, he never made apparition nor given any time which is odd, so a lot of side plots are left in the wind. Plus, the stories of brillant characters ended badly while it had so much potential.

Do I recommend ? Yes, I think those who enjoy thrillers with few romance and comedic moments, while still keeping a violent aspect - do not mistake this series for a light-hearted funny drama either - then this is for you. I must say that the plots and mysteries are really good, from episodes to episodes, as I said we do not get bored and we want more.
It is still enjoyable to watch for those like me, who lean more towards thrillers without romance or comedy, with solid script and realism, you can watch it, it's good.

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Completed
Yupon68
1 people found this review helpful
Aug 2, 2023
16 of 16 episodes seen
Completed 0
Overall 8.0
Story 7.5
Acting/Cast 9.0
Music 8.0
Rewatch Value 7.5

Excellent cast and direction; good series that flattens out

Wonderful cast and direction. But to me the series seemed to split, bog down, and then fall apart. When this happens, and the series has both a superb cast and fine director, then it’s either the writer or the promo people behind the scenes wrapping things up instead of coming to closure. Or both. At any rate, the first half is excellent and totally involving, quite intricate and an emotional roller coaster. Second half didn’t seem to match the tempo, and characters were flipped so much it was sometimes not very believable. But I did like the series, which is why I was disappointed by the pacing and seeming flattening out. Yet the cast is really great throughout. Recommended with reservations.

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Big Mouth poster

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  • Score: 8.6 (scored by 44,562 users)
  • Ranked: #478
  • Popularity: #120
  • Watchers: 102,872

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