Filmed in the real Rillington Place, which had changed its name to Ruston Close in 1954, the year after Christie's execution. Filming took place in no.7 when the occupants of no.10 refused filming to take place. The street was later demolished at the end of 1970 and the area later redeveloped, completed in 1977 as Bartle Road and St Andrew's Square.
According to the commentary by John Hurt on the DVD, real-life retired executioner Albert Pierrepoint was a technical advisor for the execution scene. This scene was the first British people had seen in a cinema of a British hanging, and as it was still covered under the government's Official Secrets Act, no details regarding the scene were available. This is where Albert Pierrepoint came in, under an assumed name, and was able to re-create the harrowing scene to maximize the true terror of what it must have been like.