This is one of the best drama I've watched.

I love most of the characters, but mostly Park Moo Yul and Choi Chi Hoon. I like how the series used a lot of symbolism and analogies to discuss the prevailing question of whether a monster is born or raised. The acting of all the actors are superb and the characters are deep and complex, each with their own trauma and psychological issues.

There are a few plot holes but I'm willing to look over it to ponder the story further. The pacing might be a bit slow and I almost wanted to drop it during the first episode but I'm glad I continued as this series is one of the most memorable one I've ever watched.

I also think that the cinematography and music is beautiful, and the story has a beautiful ambience found in no other place.