Oldboy

Oh Dae-su (Choi Min-sik) is an ordinary Seoul businessman with a wife and little daughter who, after a drunken night on the town, is locked up in a strange, private "prison." No one will tell him why he's there or who his jailer is. The imprisonment last for 15 years until one day when Dae-su finds himself unexpectedly deposited on a grass-covered high-rise roof, determined to discover the mysterious enemy who had him locked up. (Tartan Films)