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

Superintendent Cooper Smith

Susan Hampshire

Trudy Emberday

Cathleen Nesbitt

Livia Emberday

James Culliford

Luke Emberday

Brigitte Horney

Oberin

Robert Morley

Hubert Hamlyn

Sophie Hardy

Sophie

Colin Gordon

Dice

Eddi Arent

Clossen

Diane Clare

Clare