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.

The Mirror Crack'd
1980
6.1/10

The Naked City
1948
7.2/10

Black Angel
1946
6.1/10

Sapphire
1959
7.0/10

Shadow of a Doubt
1943
7.5/10

The Glass Key
1942
6.6/10

Sleep, My Love
1948
6.3/10

Indemnity
2022
6.6/10

Murder!
1930
6.0/10

Lady in the Lake
1946
6.1/10

Nancy Drew and the Hidden Staircase
2019
6.4/10

Nightfall
1956
6.9/10

Blackmail
1929
6.5/10

The Blue Gardenia
1953
6.5/10

The Maltese Falcon
1941
7.7/10

M
1951
6.5/10

Miss Marple: They Do It with Mirrors
1991
6.9/10

A Blueprint for Murder
1953
6.2/10

The Dark Mirror
1946
7.0/10

Maniac
1963
6.2/10
Notorious
1946
7.712/10