A year after losing her husband, mother Shiho drowns her sorrows in alcohol, sinking deeper into despair. Despite her three sons' growing concern, she continues spiraling out of control. One night, overwhelmed by intoxication and loneliness, she enters a dreamlike state, acting on her deepest desires without restraint. Her pent-up longing erupts into raw, unbridled lust. From that night on, the unraveling mother begins to transform.