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 mo
Bernard Lee
William Sylvester
Margaret Tyzack
David Kossoff
Nancy Nevinson
Thorley Walters
Philip Latham
Cyril Chamberlain