Kaori is having a physical relationship with her daughter's boyfriend, Atsushi. She plans to marry Atsushi and live together, but deep in Kokoro she begins to feel a vague sense of unease. She cannot help but notice her daughter and Atsushi making love. She cannot suppress her desire to steal him away from her daughter and monopolize him. Hiding from her daughter and hiding her guilt towards her family, Kaori passionately embraces Atsushi. With her carnal desires and intentions intertwined, Kaori comes to a certain conclusion...