The Little Shop of Horrors is a 1960 American horror comedy film directed by Roger Corman. Written by Charles B. Griffith, the film is a farce about a florist’s assistant who cultivates a plant that feeds on human blood. The film’s concept may have been inspired by “Green Thoughts”, a 1932 story by John Collier about a man-eating plant. Hollywood writer Dennis McDougal suggests that Griffith may have been influenced by Arthur C. Clarke’s 1956 science fiction short story “The Reluctant Orchid” (which was in turn inspired by the 1905 H. G. Wells story “The Flowering of the Strange Orchid”).

A clumsy young man nurtures a plant and discovers that it’s carnivorous, forcing him to kill to feed it.