Amazing! The entire cast was just amazing. The actor who plays Yoon Jong Woo should receive an Emmy Award. His metamorphosis was so real. I later realized that I had seen him as the main role in Incomplete Life which was also amazing. This guy has real acting chomps on him. I look forward to seeing his future works.

Also, the guy from Goblin played his psychopathic character really well!! I didn't see his usual "handsome" guy character in his other shows. He was truly terrifying. The actor definitely proved his range in performance. He broke out of his "handsome" guy role and now I will definitely think of him as an Actor instead of "just the guy from Goblin." Know what I mean?

10, 1-hr episodes was perfect for this drama. There weren't any fillers. I had to take this show relatively slow because the torture is pretty gruesome.

OCN truly does make cinematographic art pieces. This is the network for serious and compelling dramas.

The ending is definitely not ambiguous, by the way.