Best Mystery Movies of 1966

During the Cold War, an American scientist appears to defect to East Germany as part of a cloak and dagger mission to find the formula for a resin solution, but the plan goes awry when his fiancee, unaware of his motivation, follows him across the border.

Luther Heggs aspires to being a reporter for his small town newspaper. He gets his big break when the editor asks him to spend the night at the Simmons mansion that, 20 years before, was the site of a now famous murder-suicide. Luther's account of his wild, ghost-ridden night in the house leads Simmons to sue for libel, but with the aid of his friend Kelsey they determines what exactly happened.

A young poet gets the brilliant idea to live in a department store, hiding by day, and courting his muse by night where it's quiet, and he can have all his needs met. But, to his surprise, he learns his brilliant idea's not exactly original; there are other residents who dodge the night watchmen, and who keep their existence secret at all costs. And one of them is a young woman who wants to leave, but is too frightened to go. And Charles finds that he wants to show her the larger world outside.

In this feature-length film based on the "Flintstones" TV show, secret agent Rock Slag is injured during a chase in Bedrock. Slag's chief decides to replace the injured Slag with Fred Flintstone, who just happens to look like him. The trip takes Fred to Paris and Rome, which is good for Wilma, Barney, and Betty, but can Fred foil the mysterious Green Goose's evil plan for a destructive missile without letting his wife and friends in on his secret?

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.

The handsome top agent Matt dies a tragic death in his bath tub - the women mourn about the loss. However it's just faked for his latest top-secret mission: He shall find Dr. Solaris, inventor of the Helium laser beam, powerful enough to destroy a whole continent. It seems Dr. Solaris has been kidnapped by a criminal organization. The trace leads to the Cote D'Azur.

An amnesiac wanders the streets of Manhattan, trying to solve the mystery of who he is.

A murder mystery.

A circus becomes the location for stolen loot and murder.