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.
Rated NR | Length 96 minutes
Jack Hawkins | John Stratton | Dorothy Alison | Michael Brooke | Sam Kydd | Glyn Houston | Richard Leech | Newton Blick | Geoffrey Keen | Sydney Tafler | Peter Burton | George Rose | Arthur Rigby | Ralph Truman | Ian Bannen | Maureen Davis | John Warwick | Joss Ambler | Barry Keegan | Alec McCowen | Harry Locke | Nicholas Parsons | Warwick Ashton | Ursula Howells | David Davies | Julie Milton | Meredith Edwards | Harold Goodwin | John Welsh | Gillian Webb | Maureen Delaney | Jameson Clark | William Mervyn | Vincent Ball | Richard Davies | Frazer Hines | Stratford Johns | David Lodge | Guy Standeven | Frederick Treves | Peter Welch | Martin Wyldeck | Dennis Carnell | Edward Cast | Michael Collins | Fred Davis | Jack Dearlove | Robert Gregory | Fred Griffiths | Patrick Halpin | Aidan Harrington | George Holdcroft | Lindsay Hooper | Arthur Howell | Colin McKenzie | Jack McNaughton | Robert Moor | Fred Nicholas | John Paul | Roy Purcell | Charles Rayford | Anthony Richmond | Pat Ryan | Philip Stewart | Meadows White | John Wilder | Sonnie Wills