"Oldboy" is a psychological thriller directed by Park Chan-wook, based on the comic book of the same name by Kim Ji-woon. The film stars Choi Min-sik, Yoo Ji-tae, and Lim Eun-hee. The story revolves around Oh Dae-su (played by Choi Min-sik), a businessman who is kidnapped and held captive in a mysterious room for 15 years. After his sudden release, Oh Dae-su embarks on a quest for revenge against his captor, leading to a complex and violent exploration of themes such as revenge, redemption, and the complexities of human relationships.