Ken is a boy who is proud of his mother, who is famous in the neighborhood for being beautiful. His father is on a business trip overseas, so he is left alone with his mother at home. He gradually becomes attracted to her beauty, and eventually he can no longer control his feelings. One day, Ken finds his mother cleaning the bathtub in her underwear. He can no longer resist, and is turned on by her pubic hair, visible through her underwear, and attacks her...