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.

Cast:Jack Hawkins, John Stratton, Dorothy Alison, Michael Brooke, Sam Kydd, Glyn Houston,

Genre:Mystery, Crime, Thriller,

country:United Kingdom,

Production:Ealing Studios,