A young woman is framed for the murder of a wealthy man who met his death at the hands of his heirs.

A gang of thieves led by American Eddy (Reed de Rouen) kill a security guard during a botched safe robbery and flee with his daughter (Leigh Madison) as a hostage. They hide out in a dangerously unstable old warehouse for a couple of days awaiting their getaway ship to sail, but Johnny (Kenneth Cope) falls for the girl - provoking a serious falling-out and a violent conclusion to the disastrous heist.

A young Scotland Yard police academy recruit tries to break up a gang of thieves.

Around the turn of the century, in England, alcoholic Uncle Willie is the bane of his family, of which his brother-in-law is the family spokesman. It is decided to let Uncle Willie buy a bicycle shop in order to impress Virginia van Stuyden, an American heiress in love with Frank. This pleases Uncle Willie's young nephew, Charles. Complications arise when stuffy lord, Sir George Probus, at whose home Virginia is staying, becomes shocked when she attends a carnival.

An elderly couple move into an old, supposedly haunted abandoned house. A young girl comes to live with the pair as a companion for the wife. However, soon the girl is possessed by the spirit of another girl, a wealthy woman who had once lived in the house but who had been murdered there.

In England, an eccentric police inspector, an earnest test pilot and a spunky female reporter team up to solve the mystery of a series of test aircraft which have disappeared without a trace while over the ocean on their maiden flights; unaware, as they are, that a spy ring has been shooting the planes down with a ray machine hidden aboard a salvage vessel which is on hand to haul the downed aircraft aboard, crews and all.

When his best friend is murdered inside a London dancehall, a cab driver and his girlfriend involve themselves in the investigation and discover a major criminal operation hiding behind the club's friendly facade.