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.

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Main Cast: Karin Dor, Harry Riebauer, Ingmar Zeisberg, Walter Giller, Rudolf Fernau, Hans Nielsen, Dieter Eppler, Hans Reiser, Richard Häussler, Albert Bessler

Director: Harald Reinl

Writers: Gustav Kampendonk, Ladislas Fodor

Editor: Walter Wischniewsky

Cinematographer: Ernst W. Kalinke

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