At her husband's request to move in and care for his ailing father, Shizuku begins living with her father-in-law. However, she has long been uncomfortable with him due to his repeated sexual harassment. Once cohabitation starts, she realizes his health is perfectly fine, and whenever they're alone, he increasingly gropes and touches her body. Exploiting his influence at her husband's workplace, he threatens to get her husband fired, thereby intimidating Shizuku and restricting her freedom. Even in her husband's presence, the harassment continues unabated—Shizuku resists, but cannot break free or defy him. Gradually, her body begins responding to her father-in-law's persistent, slimy advances, a stark contrast to her emotionally distant husband.