Oldboy (2003)

One evening, a tipsy man was returning from work. His beloved wife and daughter were waiting for him at home. He wakes up in some unfamiliar place, where he spends 15 years. During the years of imprisonment in complete ignorance, in a small cell, only the thought of revenge kept him from going crazy. He was preparing psychologically and physically to meet his secret opponent. As unexpectedly as the man was in the cell, he wakes up on the roof, next to him a suitcase of money. He goes to a restaurant, where he meets a nice girl, and mutual sympathy immediately appears between them.

Finally, the main character meets his enemy, who has kept him in prison for 15 years. He starts a new game, Oh De-Su must solve the mystery of his abduction in 5 days. With the correct answer, his enemy will commit suicide, if the riddle remains unsolved, he will kill his new acquaintance Mi Do. Will the main character be able to solve it, what fatal mistake from the past ruined his whole life?