Yuri is a married woman who leads an ordinary life with her husband and two sons, finding joy in her hobby of hula dancing. Her peaceful, routine-filled days take a dark turn when her younger son accidentally discovers her masturbating. The shocking sight leaves a deep impact on the impressionable teenager, who begins having erotic dreams about his mother. That night, driven by desire, he approaches her, blurring the boundaries between mother and child. Meanwhile, the eldest son, who has secretly been watching them both, must now confront the disturbing reality unfolding before him. As hidden desires surface, the family's unspoken rules collapse, unraveling the bonds that once held them together.