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A government team researching cures for plague find their results put on the Official Secrets list. One of their number is so incensed by this that he lets the maimed and jealous companion of a female colleague draw him into what, technically, could be a treasonable act.
Keywords
based on novel or book
spy
traitor
scientist
plague
Casts

Tony Britton
Dr. Robert Marriott

Virginia Maskell
Dr. Lucy Byrne

Ian Bannen
Alan Andrews

Kenneth Griffith
Dr Shole

Peter Cushing
Professor Sewell

Thorley Walters
Special Agent Prince

Donald Pleasence
Parsons, alias Bill Brown

Spike Milligan
Arthur, lab orderly

Raymond Huntley
Sir George Gatting the Minister of Defense

Sam Kydd
Slater

Anthony Booth
Parkin

Basil Dignam
Dr Childs

Brian Oulton
Director
Robert Bruce
Levers

John Payne
Iverson
Bruce Wightman
Phil the Barman

Geoffrey Bayldon
Rosson

Andre Charisse
Heller

Ian Wilson
Pin Table Man

Margaret Lacey
Prince's Secretary

Murray Melvin
Teddy Boy
Crews
Nigel Balchin
Novel

Roy Boulting
Writer

Roy Boulting
Director
Nigel Balchin
Screenplay
Albert Witherick
Art Direction
Peter James
Set Decoration
John Jympson
Editor

John Boulting
Director
Mutz Greenbaum
Director of Photography
Laurie Ridley
Still Photographer
Peter Allwork
Camera Operator
Philip Shipway
Production Manager
Freddie Williamson
Makeup Artist
Gerry Anstiss
Assistant Camera

John Boulting
Producer

Roy Boulting
Producer
Anne Box
Hairstylist
Basil Rayburn
Assistant Director
George Stephenson
Sound Mixer
Alan Evans
Scenic Artist
Backdrops & Posters
