Misa Tsukioka, a rising star in the music industry who is rapidly gaining popularity, suddenly scratches her breasts and arches her back on stage. A doctor's diagnosis is that she has a type of schizophrenia, commonly known as nymphomaniac. Her younger sister Yuko sincerely prays for her full recovery... Misa's illness is not Yuko's only worry. In fact, Misa and Yuko's mother are also nymphomaniacs. Amid Yuko's anxiety, psychiatrist Kawamoto is assigned to treat Misa, but...