A serial killer who drains his victims for blood is on the loose and London police follow him to a house owned by an eccentric scientist.

A circus becomes the location for stolen loot and murder.

An ambitious young accountant schemes to wed a wealthy factory owner's daughter, despite falling in love with a married older woman.

Based loosely on the real-life story of the World War I spy. The exotic dancer uses her contacts in European high society, along with her seductive charm, to collect military secrets during the war. She successfully plays both sides against each other until at last her deceptions catch up with her.

An American wakes in an English hospital, unable to remember anything prior to a recent car accident. With only a magazine photograph as a guide, and an unknown benefactor, he attempts to unravel what increasingly looks like a bizarre murder.

A seasoned pilot is condemned for an error which causes a crash. The pilot later dies in a crash with similar circumstances and an examiner looks for scientific reasons for the crashes.

A World War II evacuee returns years later to England and finds his father in prison framed for murder.

A group of crooks accidentally kill an elderly shop assistant while stealing the keys to the jewellery shop where she works. When his superiors think that the case is better handed over to Scotland Yard, the local detective inspector, Sparrow, decides to go solo to investigate the crime himself.

An up and coming politician is caught in a compromising photograph taken by a maid, who turns out to be part of a sophisticated blackmail ring. When the girl is found murdered, he holds an incriminating old dueling pistol.

A German spy in Cairo must report back to Rommel with information on British positions.