A Korean man in China takes an assassination job in South Korea to make money and find his missing wife. But when the job is botched, he is forced to go on the run from the police and the gangsters who paid him.

As a child, Woo-young and his sister were mistaken as orphans and were sent to an orphanage, where he had been abused and lost one eyesight due to severe beating. Years later, Woo-young seeks out vengeance and tracks down and kidnaps the former chief of the establishment. But things quickly gets out of hand and he accidentally ends up kidnapping the man's daughter with him- and starts a deadly game of truth or dare.