Ring of Spies 1964

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.

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 

• Ring of Treason