Furukawa Iori is a kind, soft-spoken doctor who makes daily house calls and has earned the trust of everyone around her. One day, she visits a patient named Yajima despite sensing that something is wrong. He is actually the boss of the Yajima yakuza clan. Iori works tirelessly to treat the terminally ill man, only to be captured by the bondage-obsessed gangster, imprisoned, completely restrained, and repeatedly raped until she finally submits.