Hikaru, a mother of two, is exhausted from the monotony of daily life and unfulfilled sexual desires. After finishing housework, drowsiness overwhelms her, leaving her consciousness hazy. Her son, Katsunori, returns home and discovers her in this vulnerable state. Overcome by the scent of her femininity, he can no longer resist and reaches out to her. From the cracks in their ordinary lives emerges sudden desire and unexpected physical intimacy. A strange new relationship begins within the quiet of their home.