Kicked out of Army Intelligence, a pair of upper class twits set up as private detectives. The result is refined English chaos. "This is the regettable story of two Drones who didn't even know their own Zones. It starts in Germany, gets nowhere and stops at nothing." Radford and Wayne, cashiered from the army when they let a captured Nazi escape, become private detectives who later get involved with the same German and a missing diamond ...

When she learns that the Nazis have confiscated Leonardo da Vinci's masterpiece Mona Lisa, art-loving South American wanna-be spy Tamara (Jane Carr) journeys to Lisbon to snoop for the Germans in return for the iconic painting. But bumbling Nazi agents, Allied counterspies and multiple copies of the artwork soon confound her attempts at espionage.

Two feuding millionaires try to destroy each other's business while their children fall in love with each other.

A private detective goes after the people who murdered his girlfriend.

Holmes, retired to Sussex, is drawn into a last case when his arch enemy Moriarty arranges with an American gang to kill one John Douglas, a country gentleman with a mysterious past. Holmes' methods baffle Watson and Lestrade, but his results astonish them. In a long flashback, the victim's wife tells the story of the sinister Vermissa Valley.

The wife of a candidate for Parliament is having an affair with the brother of her husband's rival. Her lover is running for election on a promise of building a railway that the community needs, but a wealthy landowner won't give permission for the railway to be built over his land. When the landowner is later found dead, suspicion falls on the adulterous candidate.

When a meek secretary goes to work for her new boss, she becomes a sophisticated lady.

A talented American actress enlists the help of the famed Belgian detective, Hercule Poirot, to negotiate a divorce from her husband, Lord Edgware, only to find him the next day stabbed to death in his library. Who would want him dead?

In 1930s France a bar hostess helps a man prove himself innocent of murder.

'Stableboy buys ruined employer's horse and wins Derby.' (British Film Catalogue)