Puuko has an abnormal sexual desire, driven by a craving for the scent of blood during sex. Unaware of her own impulses, she visits a psychology research institute, but gradually the director and his assistant are drawn into the ◆ecstasy of death◆. As a result, her transcendent body transforms into a mutilated corpse riddled with stab wounds. Her abnormal lust involves not just pleasure, but deep-seated cruelty.