The best James Mason’s thriller movies on YouTube

Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.

Trying to find how a millionaire wound up with a phony diamond brings Hercule Poirot to an exclusive island resort frequented by the rich and famous. When a murder is committed, everyone has an alibi.

A year after Sheila is killed in a hit-and-run, her multimillionaire husband invites a group of friends to spend a week on his yacht playing a scavenger hunt-style mystery game. The game turns out to be all too real and all too deadly.

Nazi hunter Ezra Lieberman discovers a sinister and bizarre plot to rekindle the Third Reich.

Sherlock Holmes is drawn into the case of Jack the Ripper who is killing prostitutes in London's East End. Assisted by Dr. Watson, and using information provided by a renowned psychic, Robert Lees, Holmes finds that the murders may have its roots in a Royal indiscretion and that a cover-up is being managed by politicians at the highest level, all of whom happen to be Masons.

A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...

When her father is murdered, a cosmetics heiress becomes the next target of an unknown killer amid the international jet set.

During WWII the valet to the British Ambassador to Ankara sells British secrets to the Germans while trying to romance a refugee Polish countess.

Charles Dobbs is a British secret agent investigating the apparent suicide of Foreign Office official Samuel Fennan. Dobbs suspects that Fennan's wife, Elsa, a survivor of a Nazi Germany extermination camp, might have some clues, but other officials want Dobbs to drop the case. So Dobbs hires a retiring inspector, Mendel, to quietly make inquiries. Dobbs isn't at all sure as there are a number of anomalies that simply can't be explained away. Dobbs is also having trouble at home with his errant wife, whom he very much loves, having frequent affairs. He's also pleased to see an old friend, Dieter Frey, who he recruited after the war. With the assistance of a colleague and a retired policeman, Dobbs tries to piece together just who is the spy and who in fact assassinated Fennan.

A British woman on a visit to post-war Berlin is caught up in an espionage ring smuggling secrets into and out of the Eastern Bloc.

At an exclusive boys' school, a new gym teacher is drawn into a feud between two older instructors, and he discovers that everything at the school is not quite as staid, tranquil and harmless as it seems.