After returning to her hometown, Kanako's house was filled with loneliness following the third anniversary of her husband's death. However, her daughters came to visit, and that loneliness eased all at once. One night, when the son-in-law went to the kitchen to get a drink, he witnessed Kanako masturbating with a vegetable. Startled, he still hid and peeked at the scene. "My mother-in-law was lonely too," the son-in-law thought. That night, he had sex with his wife, but the image of Kanako wouldn't leave his mind. The next day, the daughter went out with a friend, leaving only Kanako and the son-in-law at home. Staring at Kanako's buttocks as she cleaned, the son-in-law could no longer restrain himself. He finally attacked Kanako.