Nightmare

In some sources Tom Savini is credited as the film's make-up effects artist and some video prints still bear his credit as "Special Effects Director." Based on Savini, he was only a consultant and threatened to sue over the use of his name to promote the film. Savini said that what he did consisted solely of advice: "I'd tell them that something needed to look more organic, or how something should be lit. But none of the effects work in the film is my own." Savini's name is excluded from the credits in the subsequent Blu-ray releases (U.S. "35th Anniversary Edition" from Code Red and the UK release from 88 Films).

According to his patient record displayed on the computer screen, George suffers from "schizophernia" (spelling error).

The original UK cinema version was heavily cut by the BBFC with edits made to closeups of throat slitting and repeated stabs during the telephone murder, the pick axe killing, and axe blows (including blood frothing from a man's head) during the climactic flashback. The film was then listed and banned as an official video nasty, and a successful prosecution was brought against the distributing company World of Video 2000 in 1984 for releasing an unauthorized video version (which was 1 min longer than the cut cinema print). The film was finally granted a video certificate in 2002 though the print submitted was an edited U.S version, which restores the ice pick murder and around 1 minute of dialogue scenes but still has edits to the throat slashing/stabbing scene and some brief cuts to the climactic flashback nightmare murder. Finally in 2015 was the uncut version given an 18 rating from BBFC.

Featured in Terror on Tape (1985)