Ami, who started living with her husband's father, Taizo. Unable to resist Ami's young body, Taizo rapes her. After that, he takes every opportunity to molest her, force her to have sex with her husband and spy on their acts, and even commits lewd rape by the side of his son who is bedridden with a cold. Before long, Ami starts to moan under her father-in-law's relentless torment…
