Mai quits school to go work as a mechanic while his brother stays in school and chases girls. However his need for money increases as his father gets sick and ends up in the hospital with bills no one can afford. The mechanic there knows of his financial problems and teaches him how to break into cars. He introduces him to a professional car theft gang and he starts working for them. The gang is run by Toh who he soon finds out is a violent sadistic killer.