Asking his father who is imprisoned in jail for money, threatening a friend who became a murderer by mistake, stealing money from his friends, Ku Dong Hyuk is the worst scumbag you can ever imagine. Living a low-life existence like a street dog, one day, Dong Hyuk gets kidnapped by a mysterious gang. Held captive for no reason, Dong Huk is repeatedly trained by the gang in a secret and inhumane way.
