Tomifumi lives peacefully with his wife Sakiho and her widowed mother, Shiori. While Sakiho is away at a friend’s wedding one weekend, a tipsy Tomifumi confesses that Shiori has fascinated him since they met because she resembles his first love. He presses himself on her, and Shiori, secretly starved for affection and physical intimacy since losing her husband, cannot bring herself to reject him completely and gives in...