Oldboy (2003)

Oldboy (2003) is a South Korean neo-noir action-thriller directed by Park Chan-wook, based on a Japanese manga of the same name. It is the second installment in Park’s Vengeance Trilogy and is widely regarded as one of the greatest films in modern cinema. Oldboy is known for its shocking twists, intense violence, and profound psychological and philosophical themes.
The film follows Oh Dae-su (played by Choi Min-sik), an ordinary man who is mysteriously abducted and imprisoned in a small, windowless room for 15 years without knowing the identity of his captor or the reason for his confinement. He is released just as suddenly, and given five days to discover why he was imprisoned.
As Dae-su embarks on his quest for answers, he encounters Mi-do (Kang Hye-jung), a young woman who helps him unravel the mystery. His journey leads him to Lee Woo-jin (Yoo Ji-tae), a wealthy and powerful man who reveals that Dae-su’s imprisonment was part of an elaborate plan for revenge, with dark secrets from Dae-su’s past as the central reason.