
Ring of Spies
The film is based on the actual events of the Portland Spy Ring trial in the U.K. A disgruntled Navy Clerk is transferred to a secret research establishment and is subsequently black-mailed/paid by Czech intelligence to procure secrets for them. He seduces the secretary who controls the most secret documents, and they enjoy the fruits of their treachery until the British authorities begin to close in on them.
Where to Watch
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Top Cast

Bernard Lee
Henry Houghton

William Sylvester
Gordon Lonsdale

Margaret Tyzack
Elizabeth Gee

David Kossoff
Peter Kroger

Nancy Nevinson
Helen Kroger

Thorley Walters
Cmdr. Winters
Gillian Lewis
Marjorie Shaw
Newton Blick
P.O. Meadows

Philip Latham
Captain Ray

Cyril Chamberlain
Anderson
Justine Lord
Christina

Patrick Barr
Captain Warner

Derek Francis
Chief Supt. Croft

Hector Ross
Supt. Woods

Paul Eddington
Johnnie (uncredited)

Richard Marner
Colonel Monat (uncredited)

Geoffrey Palmer
Police Officer (uncredited)

Bryan Pringle
Surveillance Man (uncredited)
Andre Mikhelson
Russian Embassy Official (uncredited)

Garry Marsh
First Member at Lords (uncredited)
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