Taken off the force, a renegade cop bulldozes through the Japanese conventions of etiquette, restraint and face-saving to expose ingrained institutional corruption... One day, a corpse of a murdered drug dealer is discovered. Azuma's investigation leads him to a narcotics syndicate run behind a corporate front, and a police coverup involving one of Azuma's beloved, emotionally disturbed sister has been kidnapped by the very same drug dealers. So Azuma sets out, his violent frenzy unleashed, until he tracks down the drug boss, avenges his friend, and rescues his sister.