Oldboy is a 2003 neo-noir action thriller film (2nd instalment of The Vengeance Trilogy).
Oldboy (2003) is a South Korean neo-noir action thriller film about a man named Oh Dae-su who is imprisoned in a hotel room for 15 years without explanation. When he is finally released, he seeks revenge on his captors and uncovers a dark conspiracy. The film is a brutal and visceral exploration of themes of revenge, violence, and redemption, and it is widely considered to be one of the greatest films of all time.