A married woman caregiver, Kanna Imai, writhes in agony from cunnilingus without being able to make a sound - Kana Imai

The movie revolves around a married woman caregiver, Kanna Imai, who takes care of her paralyzed father-in-law. As she provides care, a complex and intimate relationship develops between them, leading to a forbidden and secretive affair. The central dramatic tension lies in the moral and social implications of their actions, as well as the risk of being discovered by Kanna's husband.