During the late 1980s, two detectives in a South Korean province attempt to solve the nation’s first series of rape-and-murder cases.

The life of a happy family is thrown into turmoil when they are given 30 days to pay back a relative’s massive debt or lose everything.

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…