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The Trygon Factor (1966)

M | | Comedy, Crime, Drama | May 1967 (UK)
Scotland Yard Superintendent Cooper-Smith investigates the suspicious looking Emberday estate where the Emberday family and an order of nuns reside.



(story), (screenplay) | 2 more credits »
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Cast overview, first billed only:
Supt. Cooper-Smith
Susan Hampshire ...
Trudy Emberday
Hubert Hamlyn
Cathleen Nesbitt ...
Livia Embarday
Sister General
Sir John (voice)
Siegfried Schürenberg ...
Sir John - German Version
Eddi Arent ...
Emil Clossen
Sister Claire
James Culliford ...
Luke Embarday
Colin Gordon ...
White Nun
Richardina Jackson ...
Black Nun


A Scotland Yard detective is investigating a string of robberies and a murder, and the information he uncovers leads him to the estate of a wealthy but strange English family, who share their mansion with a group of nuns. The detective comes to suspect that neither the family nor the nuns is quite what they seem to be. Written by frankfob2@yahoo.com

Plot Summary | Add Synopsis


Comedy | Crime | Drama | Mystery


M | See all certifications »





Release Date:

May 1967 (UK)  »

Also Known As:

A fehér apácák titka  »

Box Office


DEM 4,000,000 (estimated)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:



Aspect Ratio:

1.66 : 1
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Did You Know?


In the early days of production, Alvin Rakoff was originally set to direct. See more »


Referenced in Lukas: Mann und Maus (1998) See more »

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User Reviews

A nutty little film with the zest of the mid-1960's
12 May 2005 | by (Virginia, United States) – See all my reviews

I must admit this was an interesting picture. It has some zany scenes, like nuns racing down the River Thames in a motorboat, which alone are worth the price of admission. It was filmed partially at St. Mary's College in Twickenham, Middlesex, England, using the part of the college termed "Strawberry Hill," which Horace Walpole built as a Gothic-revival castle in the mid-1700's. I was an American teenager who happened to study at that college in 1969, and the staff mentioned that this picture had been filmed there a few years before. In fact, quite a few films and television shows have been made at "Strawberry Hill" because the college needs the funds badly for upkeep. I also remember a scene in the film with overt lesbian overtones.

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