Frenzy actual London serial murder cases: the Christie murders in the early 1950s, and the Jack the Ripper murders in 1888. Barry Foster has said that, in order to prepare for his role, he was asked by Hitchcock to study two books about Neville Heath, an English serial killer who would often pass himself off as an officer in the RAF. "Frenzy" was the third and final film that Hitchcock made in Britain after he moved to Hollywood in 1939. The other two were "Under Capricorn" in 1949 and "Stage Fright" in 1950 (although there were some interior and exterior scenes
Frenzy Hitchcock filmed several key scenes showing the area as the working produce market that it was. Aware that the area's days as a market were numbered, Hitchcock wanted to record the area as he remembered it. According to the 'making-of' feature on the DVD, an elderly man who remembered Hitchcock's father as a dealer in the vegetable market came to visit the set during the filming and was treated to lunch by the director. No. 31, Ennismore Gardens Mews, was used as the home of Brenda Margaret Blaney during the filming of "Frenzy". During shooting for the film, Hitchcock's wife