Wife (Kanae) is a married woman whose husband works at a trading company. Occasionally, her husband hosts drinking parties with his subordinates, during which Kanae constantly finds herself troubled by his condescending lectures and arrogant behavior toward them. One day, she begins to empathize with Yamashita, one of her husband's subordinates, and secretly starts a relationship with him. Yamashita soon begins visiting her home frequently, repeatedly demanding her body. Reluctantly, Kanae gives in to his advances, drawn into a passionate yet conflicted affair that unfolds with intense desire and emotional turmoil.