A red band trailer has arrived for the upcoming thriller I Saw the Devil, which will be released in theaters on March 4. Click on the video below for your first glimpse at Ji-woon Kim's latest, but only if you're over the age of 18.

Byung-hun Lee (The Good, the Bad and the Weird) stars as Dae-hoon, a special agent whose pregnant wife becomes the latest victim of a disturbed and brutal serial killer, captivatingly played by Oldboy's Min-sik Choi. Vowing revenge, Dae-hoon blurs the lines between hunter and hunted and good and evil, eventually becoming a monster himself in his twisted pursuit of revenge. From Korean genre master Ji-woon Kim (The Good, the Bad and the Weird, A Tale of Two Sisters) I Saw the Devil is shockingly violent and stunningly accomplished, transcending the police procedural and pushing the boundaries of extreme Asian cinema in surprising and thrilling new ways.