The Strangler of Blackmoor Castle (1963) is a Crime, Thriller, Horror film that follows a strangler is loose on a British estate, and he not only strangles his victims but brands an "M" onto their foreheads before he decapitates them. The Strangler of Blackmoor Castle is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.3 out of 10 from 23 votes. Fans of crime movies may also want to explore similar titles below.