Michael Dang’s review published on Letterboxd:
I Saw the Devil is dark, scary, bloody, brutal, unforgiving, relentless, beastly, evil...in other words a fucking psychotic masterpiece of a film. Features one of my favourite actors in the world, Choi Min-sik, playing the rapist serial killer antagonist. Whatever role he is in he brings everything. And boy did he bring everything.
The cinematography in this film is absolutely beautiful. The bloody murders in cars, snowy blood, that angel wing opening scene. URGH so fucking good. I love twists and this movie has a lot of twist and turns.
Lee Byung-hun plays the protagonist out to make Choi Min-sik's character life miserable. Throughout the movie you question Lee's character and his morals. You slowly see this man turn into the devil to fight with the very devil that ruined his life. Should've been called I Saw the Devils.
I can only describe this film by one word, brutal. The movie does not shy away from blood and it showcases a lot of different ways to rip a man until he no longer wants to live. One of my all time favourite Korean films. Would recommend to anyone.