Park Bo-kyung

Caught up in anxiety, eight-year-old Chul in school tells his teacher that he is going to the bathroom but runs straight home.

The friendship between a lawyer who will do anything to make money and a nursing home volunteer.

After barely surviving a violent attack by an elusive serial killer, crime boss Jang Dong-su finds himself forming an unlikely partnership with local detective Jung Tae-seok to catch the sadistic killer simply known as K.