- HD 1080
- Runtime: 90m.
- Status: Released
0
- Languages: en
- Country: United Kingdom
- Director: Robert Tronson
- Stars: Bernard Lee, William Sylvester, Margaret Tyzack, David Kossoff, Nancy Nevinson
- keywords: soviet spy
- Production_studio: British Lion Films
- The Ring of Spies is featured in the top rankings of 1964
- #53 in Top Drama Movies of 1964
- #15 in Top Crime Movies of 1964
- #19 in Top Thriller Movies of 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.