The Gangster, the Cop, the Devil (Akinjeon). Official US Trailer

The Gangster, The Cop, The Devil is a South Korean crime thriller from the renowned Cannes Film Festival, starring legendary Train To Busan actor Don Lee. After barely surviving a violent attack by an elusive serial killer, crime boss Jang Dong-su (Don Lee) finds himself forming an unlikely partnership with local detective Jung Tae-seok (Kim Moo-yul) to catch the sadistic killer known as "K."