- HD 1080
- Runtime: 88m.
- Status: Released
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- Languages: en
- Country: Germany, United Kingdom
- Director: Cyril Frankel
- Stars: Stewart Granger, Susan Hampshire, Cathleen Nesbitt, James Culliford, Brigitte Horney
- keywords: scotland yard
- Production_studio: Portman Productions, Rialto Film
- Slogan: When you see this sign - run... run... run for your life!
- The The Trygon Factor is featured in the top rankings of 1966
- #17 in Top Crime Movies of 1966
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.
