One night, the mother drinks alone in an empty room to ease her loneliness. Overcome by intoxication and emotion, she breaks down, unable to suppress her feelings. When her son returns home and approaches to help her to bed, she suddenly presses her body against him, giving in to temptation. The next morning, she has no memory of what happened. As she bathes, her son watches secretly while she touches herself. He moves closer and whispers, "Don't you remember what happened last night?" Confused by his words, she suddenly lunges at him. The ambiguous relationship between mother and son deepens after this fateful night.