
Scotland Yard detectives attempt to solve a spate of safe robberies across England beginning with clues found at the latest burglary in London. The film is notable for using a police procedural style made popular by Ealing in their 1950 film The Blue Lamp. It is known in the US as The Third Key.

Jack Hawkins
Supt Tom Halliday

John Stratton
Sergeant Ward

Dorothy Alison
Mary Halliday

Michael Brooke
Tony Halliday


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June 1, 1956
1h 36m
6.9
Charles Frend
Robert Barr, Janet Green
23


Ealing Studios
GB

Sam Kydd
Police Constable in Information Room

Glyn Houston
Detective Sergeant in 'Q' car

Richard Leech
Nightwatchman / Gilson

Newton Blick
Deputy Commander

Geoffrey Keen
Chief Superintendent Jim Malcolm

Sydney Tafler
Stone
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