I Saw the Devil
Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.
Cast
Lee Byung-hun
Choi Min-sik
Jeon Kuk-hwan
Cheon Ho-jin
Oh San-ha
Kim Yoon-seo
Nam Bo-ra
Lee Jun-hyeok
Yoon Chae-yeong
Choi Mu-sung