The Strangler of Blackmoor Castle

A German crime thriller from the year 1963 and one of the Edgar Wallace Films.

One night at Blackmoor Castle, a masked man appears before its owner Lucius Clark and demands that he hands over a batch of diamonds he stole some time ago. Clark refuses, and as he tries to sell the diamonds, the masked man hinders the process by killing people around the castle.

Tropes used in The Strangler of Blackmoor Castle include: