Beautiful Eva, hermaphrodite from birth, with clear signs of both sexes, under the strict guidance of his uncle, Professor, masters the secrets of sexual energy, which give the possibility of a Superman. But an angry gangster steals it, with the help of a doctor-villain to move into the body of eve and take over the world. He tries to prevent his rival, who is going to deprive the girl masculinity and thus not to let it turn into Superman…