Two detectives investigate a string of horrific murders in Seoul and zero in on a sadistic gang leader who carries an actual ball and chain.

Yang Dong-geun
as Bang Je-su

Jung Jin-young
as Oh Yeong-dal

Han Chae-young
as Kang Na-na

Ki Joo-bong
as Sergeant Kim

Kim Myeong-kuk
as Jang Chil-soon

Hwang Joon-yeong
as Go Myeong-hwan

Yoo Ha-bok
as Hang Chul-gu

Lee Dong-kyu
as No Jae-bong

Seo Jae-kyeong
as Kim Min-gi

Kim Gi-se
as Wang Soo-chang