*spanish text*
A scientist Professor, interested in the laws of heredity, impregnates a prostitute in a laboratory with the semen of a hanged murderer. The prostitute conceives a child who has no concept of love, whom the professor adopts. The girl Alraune suffers from obsessive sexuality and perverse relationships throughout her life. She learns of her unnatural origins and she revenges herself against the scientist, her "father."
