A British scientist is discovered to have been passing information to the Communists, then kills himself. Another scientist decides that they might have brainwashed him by a sensory deprivation technique, but he doesn’t know if someone really can be convinced to act against their strongest feelings. So he agrees to be the subject in an experiment in which others will try to make him stop loving his wife.
Cast
Dirk Bogarde
Dr. Henry Laidlaw Longman
Mary Ure
Oonagh Longman
John Clements
Major Hall
Michael Bryant
Dr. Danny Tate
Wendy Craig
Annabella
Harold Goldblatt
Professor Sharpey
Geoffrey Keen
Calder
Terry Palmer
Norman
Norman Bird
Aubrey
Terence Alexander
Rowing Coach (uncredited)
Grace Arnold
Train Passenger (uncredited)
Timothy Beaton
Paul Longman (uncredited)
Elizabeth Counsell
Girl Student on Station (uncredited)
Roger Delgado
Dr. Jean Bonvoulois (uncredited)
Ian Dewar
Crowd Ringleader (uncredited)
Geoffrey Denton
Train Guard (uncredited)
Ashik Devello
2nd Indian Student (uncredited)
Terence Edmond
1st Student at Party (uncredited)
Christopher Ellis
Peers Longman (uncredited)
Edward Fox
Stewart (uncredited)
Imogen Hassall
Student (uncredited)
Robin Hawdon
Student (uncredited)
Georgina Moon
Persephone Longman (uncredited)
Edward Palmer
Porter (uncredited)
Philip Ray
Father (uncredited)
Renu Setna
1st Indian Student (uncredited)
Anthony Singleton
Boy Student on Station (uncredited)
Teresa Van Hoorn
Penny Longman ( uncredited)
David Weston
Student at Party (uncredited)
Pauline Winter
Mother (uncredited)
Crew
Basil Dearden
Director
James Kennaway
Screenplay
John D. Guthridge
Editor
Denys N. Coop
Director of Photography
Basil Rayburn
Assistant Director
Michael Relph
Producer
Eric Besche
Camera Operator
Anthony Mendleson
Costume Design
Pearl Orton
Hairdresser
Harry Frampton
Makeup Artist
Robert T. MacPhee
Sound Re-Recording Mixer
Gordon K. McCallum
Sound Recordist
Vivian Temple-Smith
Sound Recordist
Georges Auric
Original Music Composer
Bill Surridge
Construction Manager
Susan Dyson
Continuity
Charles Orme
Production Manager
Muir Mathieson
Conductor
Jim Morahan
Art Direction
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