Drama Crime Thriller
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.
Directed by
Robert Tronson
Written by
Peter Barnes, Frank Launder
Bernard Lee
Henry Houghton
Richard Marner
Colonel Monat (uncredited)
William Sylvester
Gordon Lonsdale
Geoffrey Palmer
Police Officer (uncredited)
Margaret Tyzack
Elizabeth Gee
Philip Latham
Captain Ray
Paul Eddington
Johnnie (uncredited)
Cyril Chamberlain
Anderson
Bryan Pringle
Surveillance Man (uncredited)
Derek Francis
Chief Supt. Croft
Thorley Walters
Cmdr. Winters
Garry Marsh
First Member at Lords (uncredited)
David Kossoff
Peter Kroger
Basil Dignam
Second Member at Lords (uncredited)
Nancy Nevinson
Helen Kroger
Patrick Barr
Captain Warner
Fred Griffiths
News Vendor (uncredited)
Brian Nissen
Portland Official (uncredited)
Gillian Lewis
Marjorie Shaw
Newton Blick
P.O. Meadows
Justine Lord
Christina
Hector Ross
Supt. Woods
Andre Mikhelson
Russian Embassy Official (uncredited)
Edwin Apps
Blake (uncredited)
Anita West
Tilly (uncredited)
Paul Sheridan

Your rating