Toki, a recluse, lives with his brother, his brother's wife Keiko, and her daughter Haruki. Toki is curious about his brother's wife Keiko's sex life. He sets up a hidden camera in the couple's room and takes voyeuristic photos! However, Keiko and her niece Haruki find out about his actions! Haruki and Keiko seduce Toki. Will Touki have a rotten relationship with mother and daughter?!