Through the Darkness

Zhang Jing Yi is the FL in both. The chemistry is natural. The relationship had depth. However, BEITD does not have a satisfactory ending.

Another series based on a profiler, who identifies a killer with his instincts. Both series follows a grisly murders tracked by a profiler who is not liked by peers and together with a female partner solves a crime and hunt a murderer and his purpose.

Actor Kim Nam gil acted in both the dramas.

Both the dramas are of different genres, nothing in common and are just another works of the actor.

But the variations in his roles in these two dramas, surprises alot .
In one, as a cold introvert person, who never talks (dark vibes surrounding him) and in another as a fiery n yet funny n lively person, who never stops talking n smiling, punishing the bad guys and giving evil smirks to them, haha

Actor's fans will enjoy and love both.

Both look at crimes from the perspective of the people who tried to catch the criminals. Both are also based on true stories, while one is a documentary & the other is a drama.

This true crime serial killer drama is interesting because it is based on a book by South Korea’s number one criminal profiler Kwon Il Yong and journalist Ko Na Mu. Disturbingly real and suspenseful, this series analyses the psyche of serial killers.

The male leads are brilliant detectives but almost lose grip with reality as they interact with violent criminals. They have high empathy which makes them deeply understand criminal behavior to their detriment. They both have partners who bring them back to reality

They are both dramas that showcase the emotional aspect of crimes-the impact the crime has on the victim’s family and the impact it has on the people investigating the crime.
Through the darkness covers multiple cases and is semi-non fictional and ANKH covers one case. I also found Muro Tsuyoshi’s character and portrayal to be similar to Kim Nam Gil’s character too.

Both are nuanced and realistic.

- Similar drama based on a profiler but with his team members, who identifies killers with their instincts & team work.
- Suspense/Action/Thriller/Mystery
- Plot twisting truth which gives me similar vibes

Both dramas are about profiling.
Both are taking place in various time zones starting from the 80ties to the 2000s.
Both are thrillers with interesting cases. Both form teams that specialize in this.
And both have a male lead that is shaped due to his childhood and is doing a sort of narrative analysis's throughout the episodes.

Both "Black: I Saw the Devil" and "Through the Darkness" are about criminal profiling. They analyse several cases to better understand the mind of the criminal.
However, "Black" is not a drama, but a TV show.
The methods they work with are also different. In Through the Darkness the profiler analyses the criminals mainly by interviewing them. While in Black they analyse letters from the criminals, past interviews and reenactments of the cases.

Main Character: Both dramas are led by a brilliant criminal profiler.
Focus on Psychology: They both delve deep into the minds of criminals to understand their motives, rather than just focusing on clues.
Key Partnership: Both stories feature a central partnership between the profiler and a police detective.
Serious Tone: Both shows have a dark, realistic, and serious atmosphere, focusing on the grim reality of solving violent crimes.

Both dramas are about crime and criminal investigations. In both viewers can observe the behaviour of criminals.

In both, the profiler plays an effective role in discovering the truth through the analysis of criminal psychology and examining the role of the environment in criminal behaviour.
In both, the viewer closely observes the criminal's daily life and behaviours.

Both lead characters have sullen and serious personalities who seem to have decided to focus on their career than look for romantic relationships. Also, both lead characters deal with the "dark" side, though from completely different angles.