A female college student who would have ended up in an ordinary life, ordinary sex, and eventually an ordinary marriage is drawn into an unusual sexual experience by chance. She's a private tutor who intervenes between a son and his mother. This strange love triangle creates a skewed sexual relationship. Nikkatsu depicts the subtleties of female psychology, which sways subtly in such a perverted world.

• Nikkatsu Corporation
• Ryōko Watanabe
• Kiriko Shimizu
• Aki Hayasaka
• Akio Kaneda
• Azusa Nakayama
• Hiroshi Sugita
• Kosuke Yoda