On his daughter’s birthday, Ho Dae-su gets drunk and ends up at the police station. His best friend No Joo-hwan breaks him out of jail, and while calling home from a phone booth, Dae-su disappears, having been kidnapped and kept in a room for 15 years. One day, he is suddenly released, given clothes, money and a cell phone. He ends up in a restaurant where he meets Mido, a cook, and both end up falling in love with each other. Meanwhile, Dae-su is in search of the one who put him in captivity and why he did it, and in doing so learns hidden secrets of his past.