The critical mauling and public outcry about the film resulted in it being pulled from British cinemas after just five days.
Many critics of the time were offended by Michael Powell's use of himself and his real-life son as Mark Lewis' father and the young Mark Lewis, respectively. They thought Powell overly identified with the movie and that the use of his son bordered on abuse. In interviews as an adult, Powell's son has stated he finds these criticisms laughable.
The film is regarded as one of the first slasher films in horror movie history, although it was not the first horror movie to use the convention of seeing things from the killer's point of view as claimed in Pânico 4 (2011). That technique had already been done in Ódio que Mata (1944) and Concerto Macabro (1945), two films that both starred Laird Cregar and were directed by John Brahm.
One of Martin Scorsese's favorite films. Coincidentally, Scorsese's lifelong editor Thelma Schoonmaker was married from 1984 to 1990 to Michael Powell, the director of this film.