When her husband asks her to live with his supposedly ill father, Shizuku reluctantly moves in. She already dislikes the older man because he sexually harasses her whenever they meet, and after moving in she discovers that he appears perfectly healthy. Whenever they are alone, he reaches for her body. He then threatens her husband's job at his company to strip away her freedom, and his harassment escalates even when her husband is nearby. Unable to break free or defy him, Shizuku's body gradually begins responding to the lingering stimulation her indifferent husband never gives her.