Two twin brothers, Na Daero and Na Gaeseong, get caught by the police for committing minor crimes. Once released from the prison, the twins begin to plan a more serious theft, hoping for an easy way to wealth and prosperity. However, they are overheard by a mysterious Mr. X, who foils their schemes and departs with their trophies. As the twins try to catch Mr. X, the police is hunting them down, and no one knows how the chase will end.