Kim Myeong-joong is an ordinary man with no job and no money. His wife left, leaving behind a small daughter suffering from a fatal illness. The former wife offers to kidnap the daughter of rich parents and demand a ransom. Myeong-joong agrees and kidnaps the 11-year-old Ro-hee, the daughter of the chief doctor of a well-known clinic. But on the way to the Choi family mansion, he hits another girl—who turns out to be Ro-hee herself. She loses her memory, and Myeong-joong decides to pretend to be her father. Soon it turns out that her real parents were killed the very evening Ro-hee was kidnapped.