Father In Law and Daughter In Law Mai Tamaki. Mai lives in her husband's family home with her husband her father-in-law, Taro. Taro is a quiet man but she sometimes feels afraid of him. But that's not surprising considering her father-in-law is actually having dirty thoughts about Mai behind his shrewd eyes. He secretly films Mai and uses the footage to masturbate to. But that's not enough for Taro and he gets his middle-aged friends to rape Mai. Taro secretly films the entire incident from the attic and uses the video to threaten Mai to satisfy his own obscene desires....