Psycho III is a 1986 American slasher film, and the third film in the Psycho franchise. It stars Anthony Perkins, who also directs the film, reprising the role of Norman Bates. It co-stars 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. Psycho III is unrelated to Robert Bloch's third Psycho novel, Psycho House, which was not published until 1990.