The Strangler of Blackmoor Castle

There's a heavily disguised man who appears mysteriously, threatens Rudolf Fernau, and disappears. His daughter, reporter Karin Dor, enters, distraught she has almost run over Hans Nielson, who owns Blackmoor Castle; he's renting to Fernau to avoid having to sell the place, and lives in a corner turret. As the movie goes on and Fernau becomes seriously ill and paranoid, Inspector Harry Riebauer investigates the mysterious goings on, while reporters cluster around the story -- and pretty Miss Dor, too.

It's one of the Edgar Wallace mysteries produced in Germany that were so numerous in the 1960s. They certainly had a large corpus to work with; Wallace had written over 170 novels, almost a thousand short stories, and 18 stage plays before heading off to Hollywood, coming up with early drafts of KING KONG and dying in 1932 at the age of 56. He died deep in debt -- to the bookies, mostly -- but the enormous popularity of his books cleared the estate within two years.

THis is a gothic-looking production, with its gloomy castle setting, and the visuals are good.. I can't judge the performances, given I looked at an English-language version. Unlike most of the mystery writers of the era, the people who solved the mysteries were not brilliant amateurs, but the police. Shocking, isn't it?