I Saw The Devil

If you don't mind reading sub titals or extreme graphic violence than this is the movie for you. Directed by Jee-Woon Kim. This very unsettling movie is about a sadistic psychopath played by Min- Sik Choi that goes around just killing young girls even children just for the fun of it. One day he kills the pregnant wife of a super secret agent bad ass played by Byung- Hun Lee. This agent thinks just killing him is not sufficient vengeance so he beats the living hell out of him and lets him go so he can track him down and torture and beat the hell out of him again and so on and so forth.The Violence is top notch in this film.
I rate it 80 out of 99 bottles of beer on the wall. Trailor link attached :http://www.youtube.com/watch?v=tkwEFKdTckk