The Haunted Strangler

The Haunted Strangler also known as Grip of the Strangler and originally titled The Judas Hole is a 1958 British horror film directed by Robert Day. It was adapted from Stranglehold, a story which screenwriter Jan Read had written specially for Boris Karloff, and was shot back to back with producer Richard Gordons Fiend Without a Face, with both later being released as a double bill by MGM.

The film was originally called Stranglehold and was written by Jan Read, a friend of Boris Karloffs. He gave the script to producer Richard Gordon, who was looking to make a horror movie in the UK. Gordon set up Amalgamated Productions with Charles Vetters and had started providing US funding and talent for B pictures shot in Britain.Amalgamated went into partnership with British producer John Croydon and negotiated a deal with distributor Eros Films who agreed to guarantee 70 of the films budget after delivery of the final product. The remainingof the budget was provided by the National Film Finance Corporation. ........

Source: Wikipedia