Sanae has two faces: by day, she's an unassuming cleaning lady; by night, she dons bold red lipstick and provocative dresses, becoming a promiscuous woman who hunts men indiscriminately in bars. The shock of a brutal rape robbed her of her memories. Her desperate urge to recover them and her thirst for revenge against men drive her sex life into the realm of the abnormal. She binds men to the bed, tortures them with whips and props, yet surrenders her beautiful body to pleasure. One day, Sanae discovers the man who raped her and plans her revenge...