Moe and her husband's father-in-law comes to visit them from the countryside. He has a chronic mental illness and was advised by his doctor that he should change his environment, but as he looks at Moe's large breasts and voluptuous body, his father-in-law suddenly changes. Moe continues to be violated when her husband is not around, and her father-in-law loses control and plays with Moe's large breasts... with his mature, persistent caresses, as if devouring her body. At first Moe resists, but eventually she opens her legs of her own accord.