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...
| Year | 1964 |
| Country |
UK |
| Director |
Robert Tronson |
| Casting |
Bernard Lee, William Sylvester, Margaret Tyzack, David Kossoff, Nancy Nevinson, Thorley Walters, Gillian Lewis, Newton Blick, Philip Latham, Cyril Chamberlain, Justine Lord, Patrick Barr, Derek Francis, Edwin Apps, Basil Dignam |
| Genre |
Drama |
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