The Trygon Factor 1966

Name: The Trygon Factor
Released: 1966-12-16
Cast: Stewart Granger, Susan Hampshire, Cathleen Nesbitt, James Culliford, Brigitte Horney

Synopsis:

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.

Directed by:	Cyril Frankel
Written by:	Derry Quinn & Stanley Munro
Runtime:	88 minutes
Related titles:	Das Gasthaus an der Themse 1962 Die Bande des Schreckens 1960 Der Hund von Blackwood Castle 1968