The Trygon Factor

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.

Cast

Stewart Granger

Susan Hampshire

Cathleen Nesbitt

James Culliford

Brigitte Horney

Robert Morley