After a moneylender friend tricks her businessman husband into a fraudulent investment, he is crushed by debt and loses his company. Desperate to restore their once-happy life, his wife obeys the lender and takes a job as a visiting housekeeper. The title is a sham: her real duty is repaying the debt with her body to a vicious, wealthy older man. Believing she can save the family by enduring it herself, she resolves to surrender her body. Her humiliating house call begins, and she cannot go home until he has filled her ten times.