Ayami, the sheltered daughter of a prestigious family, marries a rising employee at her father's company and enjoys a happy life. But after her mother-in-law dies, her father-in-law Satoshi gradually becomes unstable. Since her husband cannot visit because of work, Ayami goes to check on him and finds that the once-orderly family home has become a garbage dump. The strict but kind man she knew is gone, replaced by a lonely, twisted widower who refuses to throw anything away. Trapped in the filthy house, Ayami is subjected to his sweaty, obsessive breeding sex, repeatedly creampied and reduced to his obedient sex slave.