Kyung-Chul is a dangerous psychopath who kills for pleasure. Soo-Hyun, 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.
Directed By
Kim Jee-woonWritten By
Kim Jee-woon, Park Hoon-jung, Lee Yoon-hoWatch on these services
Cast of I Saw the Devil
Lee Byung-hunKim Soo-hyeon
Choi Min-sikKyung-chul
Jeon Kuk-hwanSquad Chief Jang
Cheon Ho-jinSection Chief Oh
Oh San-haJoo-yeon
Kim Yoon-seoSe-yeon
Nam Bo-raSection Chief's Daughter
Lee Jun-hyukNIS Agent
Yoon Chae-yeongNurse Han Song-i
Choi Moo-sungTae-joo
Kim In-seoSe-jung
Kim Kap-sooPlanning Team Deputy Head
Um Tae-gooDetective
Choi Jin-hoPlanning Director
Jeong Mi-namGangster in Taxi
Jo Deok-jaeDetective Kang
Jang Jeong-wonKyung-chul's Son
Park Seo-yeonWoman at Pension
Lee Seol-guGangster in Taxi
Kim Yeong-chanYoung Pharmacist
Goo Yong-wanCorporal
Kim Dae-hyeHospital Worker
Kim Jae-GeonOld Doctor
Park Ji-yeonTeacher
Son Young-soonKyung-chul's Mother
Nam Hyeon-jooSection Chief Oh's Wife
Han Cheol-wooDetective Park
Sin Jeong-hoonPoliceman at Stream
Han Se-jooWoman on Bus
Park Jeong-giSergeant
Jo Myeong-yeonDetective
Kim Bong-sooKyung-chul's Father
Kim Kang-ilPark Han-gi
Sin Sin-BeomOld Pharmacist
Seol Chang-heeDetective
Yoon Byung-heeJang-goo
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