A doctor, gynecologist, discover the corpse of his wife. His nurse advises to him to declare her death a simple heart attack, to clear himself without the slightest doubt. He refuses and calls the police force there. The interrogation of the doctor, then other witnesses, slowly reveals the truth of her demise…

Ryuji Oshima, a gambler, kills Saiga in self-defense, and considering himself unfit to lead men, secludes himself in a temple to atone for his misdeeds. At home, when his mother, the boss of a construction gang, bids for and gets the job of building the Town Hall, other gangs set out to disrupt her business and try to kill her.

A violent story of loyalty and revenge among the many "yakuza" or gambling groups in Japan.