Oldboy is a 2003 movie by Park chan-wook. This movie is based on the 1997 Japanese comic book. It is a mystery action movie about the contest of Oh Dae-su who was confined in private jail for 15 years (even he does not know why he was caged) and Lee woo-jin who confined Oh because of revenge. This movie deals especially and in detail with human hatred and revenge, and uses nice visual techniques to deal with sensational material.