While in London trying to nab several fugitives who stole a million dollars from a U.S. Treasury vault, American federal agent Dennison (Dennis O'Keefe) assists Scotland Yard Insp. McClaren (Philip Friend) in his search for a missing atomic scientist (Paul Hardtmuth). The detective duo discovers that the key to solving both cases may rest with the scientist's daughter (Margaret Sheridan) and her fascinating diamond.
When several women are found mutilated and murdered, the Paris police are baffled as to who the killer may be. All evidence points to Dupin, but soon it becomes apparent that it is someone (or something) stronger and deadlier than a human.
A man looking for his fortune in a mine decides to tempt his partner with his much younger wife. The goal? To catch them "in the act" and kill him without consequence.
Reformed parolee Steve Lacey is caught in the middle when a wounded former cellmate seeks him out for shelter. The other two former cellmates then attempt to force him into doing a bank job.
After the suspicious suicide of a fellow cop, tough homicide detective Dave Bannion takes the law into his own hands when he sets out to smash a vicious crime syndicate.
Whitney Cameron is in a quandary: he's attracted to his beautiful sister-in-law, Lynn, but also harbors serious suspicions about her. Her husband, Cameron's brother, died under mysterious circumstances, and now that the death of her stepchild, Polly, has been attributed to poisoning, he suspects that Lynn is after his late brother's estate, and killing everyone in her way.
The owner of an impoverished circus in Communist-ruled Czechoslovokia plots to flee across the border to freedom, taking his entire troupe of performers and wild animals with him.
In a run-down South American town, four men are paid to drive trucks loaded with nitroglycerin into the jungle through to the oil field. Friendships are tested and rivalries develop as they embark upon the perilous journey.
After their airplane crashes behind enemy lines, four soldiers must survive and try to find a way back to their battalion. However, when they come across a local peasant girl the horrors of war quickly become apparent.
Unable, due to the seal of the confessional, to be forthcoming with information that would serve to clear himself during a murder investigation, a priest becomes the prime suspect.
Rose Loomis and her older, gloomier husband, George, are vacationing at a cabin in Niagara Falls, N.Y. The couple befriend Polly and Ray Cutler, who are honeymooning in the area. Polly begins to suspect that something is amiss between Rose and George, and her suspicions grow when she sees Rose in the arms of another man. While Ray initially thinks Polly is overreacting, things between George and Rose soon take a shockingly dark turn.
House Un-American Activities Committee investigators Jim McLain and Mal Baxter come to post war Hawaii to track Communist Party activities even though belonging to the party was legal at the time. They are interested in everything from insurance fraud to the sabotage of a U.S. naval vessel.
Actor Lester Blaine has all but landed the lead in Myra Hudson's new play when Myra vetoes him because, to her, he doesn't look like a romantic leading man. On a train from New York to San Francisco, Blaine sets out to prove Myra wrong...by romancing her. Is he sincere, or does he have a dark ulterior motive?