Psycho III is a 1986 American psychological horror film. It is the second sequel to Alfred Hitchcock's Psycho and the third film in the Psycho series. The film stars Anthony Perkins (who also directed the film), Diana Scarwid, Jeff Fahey and Roberta Maxwell. The screenplay is written by Charles Edward Pogue. The original electronic music score is composed and performed by Carter Burwell in one of his earliest projects.