Yuki runs a beauty salon and single-handedly raised her sickly daughter, Riku.One day, Yuki witnesses Riku and her lover Yuma having sex, and she begins to feel attracted to Yuma as a man. From that day on, her delusions and power struggles get more intense. When she crossed the line that should never be crossed with her daughter's boyfriend, her daughter's intuition sensed her mother's abnormality...