Four years into their marriage, the couple believed their relationship was solid. But everything changed when the landlord scolded them over improper trash disposal, shaking the foundation of their marriage. The landlord then threatened the wife, demanding she apologize with her body. As a result, she was forced into anal sex and fully broken in. This incident drove the husband to cut all ties with his wife. She became nothing more than an anal cumdump for strangers. Later, the husband reappears, leading to a depraved threesome involving the landlord. Caught in this twisted web, the wife gradually loses herself to the pleasure of anal intercourse.