Haruko (Aki Sasaki), a home helper, is invited to become his mistress when she sees the bank book of a rich customer.She exchanged her promise on the spot for the marriage fund with her poor boyfriend.Let her touch her body and speak her man's mouth.However, it is an invitation to a world of insanity.The price for her unfaithfulness was that she would be imprisoned and she would be a slave for the rest of her life.