Tetsuya Watari stars in this Kinji Fukasaku-directed crime thriller about a detective newly-stationed in Osaka who makes a deal with a local criminal gang. Cop Kuroiwa (Watari) grows close to gangsters wife Matsunaga Keiko (Meiko Kaji) when a member of her husbands gang advises Kuroiwa about some of his colleagues who are involved in underworld rackets. When a violent war breaks out between two rival gangs, Kuroiwa must reassess his position within the criminal fraternity.