As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.

A mysterious American gets mixed up with gunrunners in Syria.

A scientist working on cures for rare afflictions, such as a bone softening agent made from molds to allow him to correct the spinal deformity of his nurse, finds the physical causes of lycanthropy in wolf-man Larry Talbot and of vampirism in Count Dracula, but himself becomes afflicted with homicidal madness while exchanging blood with Dracula.

Accountant Augustis King discovers that his wife, Marfhe, is having an affair with his boss Sam Bellows. He telephones Internal Revenue Bureau that he can give evidence of a large tax-evasion racket. Before IRS-agent Steve Daniels arrives, King is murdered by a henchman of Bellows and his partner, Ernie Medford. Daniels discovers that Bellows and Medford are smuggling gold bullion from their mine in Mexico, and sell and bank the money under assumed names. they hide the bullion in a compartment welded to the bottom of a car.

The Devil arranges for a deceased gangster to return to Earth as a well-respected judge to make up for his previous life.

A security leak is found at a Southern California atomic plant. The authorities stand in fear that the information leaked would go to a hostile nation. To investigate the case more efficiently, Dan O'Hara, an FBI agent, and Philip Grayson, a Scotland Yard sleuth, join forces. Will they manage to stop the spy ring from achieving their aim?

When heiress Jean Courtland attempts suicide, her fiancée Elliott Carson probes her relationship with John Triton. In flashback, we see how stage mentalist Triton starts having terrifying flashes of true precognition. Now years later, he desperately tries to prevent tragedies in the Courtland family.

Story follows the rise and subsequent fall of the notorious head of a New York crime family, who decides to testify against his pals in order to avoid being killed by his fellow cohorts.

In 1850s Oregon, a businessman is torn between his love of two very different women and his loyalty to a compulsive gambler friend who goes over the line.

The "war of nerves" which gripped the European continent in 1938, is the background for this war thriller starring George Sanders.