A killer called 'The Dark Man' commits double murder. This is witnessed by the young aspiring actress Molly Lester. The Dark Man tries everything to put Molly out of the way. Detective Inspector Viner of Scotland Yard investigates the murders.
as Detective Inspector Viner
as The Dark Man
as Molly
as Superintendent of Police
as Carol Burns
as Charles Burns
as Samuel Denny
as Detective Sergeant Evans
as Mostyn
