Movie

The Third Secret

“The Story of a Man Searching for a Killer Who Might Be Himself!”

★ 6.2(30)19641h 43m

The Third Secret isn't available to stream, rent or buy in Mexico right now. Availability changes often, so check back soon. Availability checked 12 June 2026.

Where to watch The Third Secret

🇲🇽 Mexico

No streaming, rental or purchase options are listed in Mexico right now. Availability changes often — try switching your region in the header.

Good to know

Director: Charles Crichton
Release date: 1964-02-02
Runtime: 1h 43m
Language: English
Status: Released
Country: United Kingdom
Studio: Hubris Productions

The Third Secret — trailer

About The Third Secret

The Third Secret is a 1964 movie in the Mystery, Thriller and Drama genres, directed by Charles Crichton, starring Stephen Boyd, Jack Hawkins and Richard Attenborough. It has a runtime of 1 hour 43 minutes. It holds an average rating of 6.2/10 from 30 viewers. Below you can see where to watch The Third Secret in Mexico — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

A prominent London psychologist seems to have taken his own life, causing stunned disbelief amongst his colleagues and patients. His teenage daughter refuses to believe it was suicide as this would go against all of the principles her father stood for, therefore she is convinced it was murder. She enlists the help of a former patient to try to get to the truth. However, the truth turns out to be both surprising and disturbing.

Cast

Stephen Boyd

Alex Stedman

Jack Hawkins

Sir Frederick Belline

Richard Attenborough

Alfred Price-Gorham

Diane Cilento

Anne Tanner

Pamela Franklin

Catherine Whitset

Paul Rogers

Dr Milton Gillen

Alan Webb

Alden Hoving

Rachel Kempson

Mildred Hoving

Peter Sallis

Lawrence Jacks

Patience Collier

Mrs Belton

Freda Jackson

Mrs Bales

Judi Dench

Miss Ada Humphries

Themes & keywords

london, englandschizophreniafilm noirpsychologistamerican abroadkiller childtv host

Frequently asked questions

Where can I watch The Third Secret in Mexico?+

The Third Secret is not currently listed on any streaming, rental or purchase service in Mexico. Availability changes often, so check back or switch your region.

Is The Third Secret on Netflix?+

The Third Secret is not on Netflix in Mexico right now.

How long is The Third Secret?+

The Third Secret has a runtime of 1 hour 43 minutes (103 minutes).

Who stars in The Third Secret?+

The Third Secret stars Stephen Boyd, Jack Hawkins, Richard Attenborough, Diane Cilento and Pamela Franklin.

When did The Third Secret come out?+

The Third Secret is a 1964 movie directed by Charles Crichton.

What genre is The Third Secret?+

The Third Secret is Mystery, Thriller and Drama film.

Who directed The Third Secret?+

The Third Secret was directed by Charles Crichton.