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.

Stewart Granger

Superintendent Cooper Smith

Brigitte Horney

Oberin

Eddi Arent

Clossen

Siegfried Schürenberg

Sir John

Susan Hampshire

Trudy Emberday

Robert Morley

Hubert Hamlyn

Cathleen Nesbitt

Livia Emberday

Colin Gordon

Dice

James Culliford

Luke Emberday

Sophie Hardy

Sophie

Diane Clare

Clare

Allan Cuthbertson

Det. Thompson

Caroline Blakiston

Nun

Richardina Jackson

Nun

Yuri Borienko

Nailer

John Barrett

Guide

Conrad Monk

Pasco

Monika Dietrich

Photographic Model