Young married couple Yoon-hee and Jung-hyun go on a road trip, and along the way they pick up a lone drifter, M. M turns out to be a violent and sadistic psychopath who terrorises the couple at every turn. After capturing Jung-hyun, Em gives him a choice: submit to torture or allow Em to kill Yoon-hee.
Park Joong-hoon
Em / M
Chu Sang-mi
Yun-hie
Kim Joo-hyuk
Jeong-hyun
Ki Joo-bong
Manager
Lee Seok-ku
Detective Ma
Lee Yoon-geon
Detective Kim
Kim Jong-min
Detective Han
Jung Ho-bin
Cop
