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.
Release Date: March 23, 1964
August 14, 1987
Invalid Date
April 07, 1973
September 01, 2022
May 06, 1986
February 12, 2006
March 28, 2009
April 17, 2019
November 06, 2005
August 31, 2022
October 30, 1967
May 14, 2020
May 27, 2020
October 30, 2004
June 01, 1995
Invalid Date
October 18, 2019
October 09, 2013
February 07, 2013