After a drunken night on the town, an ordinary Seoul businessman, OH Dae-su, wakes up in the morning to discover he has been locked up without explanation in a mysterious prison. After fifteen years, Dae-su suddenly and inexplicably finds himself freed. A voice on a cellphone taunts him into discovering who kept him imprisoned. Dae-su plunges into a world of competing vengeance, his own drive for revenge matched by the equally implacable and Byzantine...

Lonely Jacobo Koller is the owner of a struggling sock company. His brother is coming to visit, and he doesn't want him to know that he isn't married, so he asks Marta to pretend that she is his wife and, surprisingly, she says yes.