Alraune, later renamed Unnatural: The Fruit of Evil, is a 1952 black and white West German science fiction film directed by Arthur Maria Rabenalt, based on the 1911 novel Alraune by German novelist Hanns Heinz Ewers, starring Hildegard Knef and Erich von Stroheim. The film involves a scientist (von Stroheim) who creates a woman (Knef) who is beautiful and yet soulless, lacking any sense of morality.