The Killer Who Wouldn't Die (1976)

After two British Secret Intelligence Service agents are murdered at the hands of a cryptic neo-Nazi group known as Phoenix, the suave agent Quiller is sent to Berlin to investigate.

An emotionally unavailable flight attendant meets a potential love interest and later finds out that her "perfect guy" has ulterior motives. As the clock ticks down on New Year's Eve, she must fight to keep her murdered ex-boyfriend's secrets or find herself dead.

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.

1934. Private detective Miranda Green investigates a murder perpetrated in the British Embassy in Cairo, where a top secret document was stolen, risking to jeopardize both Buckingham Palace and the peace of the world. All those present in this closed place are suspected: the American photographer, the English student, the American actress, the Egyptian security guard, the ambassador interpreter, the Egyptian gardener and - why not? — the Ambassador himself. But who would have expected that a small group of Nazis would be behind a plot, risking to jeopardize both Buckingham Palace and the peace of the world?

Bedraggled college professor Michael Faraday has been vexed — and increasingly paranoid — since his wife's accidental death in a botched FBI operation. When a seemingly all-American couple set up house next door, Michael begins to suspect there’s more to them than meets the eye.

A law student's theory about the recent deaths of two Supreme Court justices embroils her in a far-reaching web of murder, corruption, and greed.

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 young Western woman is recruited by the Mossad to go undercover in Tehran where she becomes entangled in a complex triangle with her handler and her subject.

Anna moves to a remote island as the new bride of a famous mystery writer. Once there, she uncovers secrets about her new husband's dead former wife and fears she may be the next victim.

A paranoid, secretive surveillance expert has a crisis of conscience when he suspects that the couple he is spying on will be murdered.