Cho Seong-ha

Bloody Innocent
5.6

Bloody Innocent

Best friends Dong-sik and Seung-ho have a crush on the same girl at school. When she's found raped and murdered, the main fishy is someone the boys know very well, and it tears their friendship aside.
Helpless
6.7

Helpless

A woman suddenly disappears. Her fiance then sets out to find her and, in the process, uncovers layers of dark hidden secrets.
Bleak Night
7.2

Bleak Night

The suicide of a former high-school bully puts the boy's father on a quest for answers.