Three years after losing her beloved husband, Yuri still couldn't overcome the loneliness in her heart. However, overwhelmed by her brother-in-law's persistent advances, she ends up engaging in a physical relationship with him. Sensing the unnatural tension between his mother and uncle, her son confronts her: "Mom, you haven't forgotten about Dad, have you...?" His words pierce her heart. With her limbs bound and a vibrator pressed against her pussy, past memories and her current reality intertwine—how much longer can she endure?