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.
as Claridge Dorsett
as Inspector Jeff Mitchell
as Judy
as Lord Edgar Blackmoor
as Lucius Clark
as Tavish
as Anthony, the butler
as Mike Pierce
as Dr. Tromby
as Gärtner Sebastian
as Tom
as Watson
as Doctor
as Philip 'Phips'
as (uncredited)
