rural mother

After losing her husband, Reiko and her son Toshio settle in a mountain village. In this village, which has been left behind by modern civilization, men and women secretly seek each other's bodies in the bushes, and Toshio learns that the custom of night crawling remains, and is worried that his mother, Reiko, will be harmed by it... One day, Toshio witnesses Reiko masturbating. When Reiko finds out that her body is too much for her husband, he begins to think of her as a woman...