From the production value, you can tell this had a high budget. Like the sets, the lighting, video quality... everything was sleek and elegant, something you don't see in Japanese dramas usually. If only they had put all of that into a better story not this creepy mess.
The only other drama that approaches this level of masterpiece status that I've watched is My Mister. Everyone's acting is so amazing it cannot be described in words. The story is tragic but beautiful and profound.
This was a really good movie, a bit slow-paced and nothing innovative but an interesting, emotional watch. Both the leads acted their hearts out. 8/10.