An ex-tennis pro carries out a plot to have his wealthy wife murdered after discovering she is having an affair, and assumes she will soon leave him for the other man anyway.
A US intelligence officer, stationed in Germany, is caught in a political dilemma when the Russians kidnap a young Army private, the son of prominent American businessman. In exchange for the soldier's return, the Russians attempt to barter a trade for an elderly German couple who they want for treason.
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.
Ambrose C. Park, left on a park bench as an infant with an impulsive need to find his parents, is an assistant to a diamond cutter. Shyster lawyer Remlick, in a strategy to get a fabulous uncut diamond through Ambrose, arranges for Emily Drummon, Duke Fargoh and Maggie Drummon to pose as Ambrose's long-lost parents and sister. The diamond, through many comic situations, is acquired and the gang is going to have Ambrose cut the diamond, and relieve him of the two stones and his parental illusions at the same time. But Maggie, who has no taste for the deception, tips Ambrose off and a wild chase ensues. At the end, Ambrose is very happy as he can now marry his "sister."
An American realtor living in England is dissatisfied with what he believes to be his humdrum life. One weekend while his wife is out of town, he gives a ride to a woman he sees stranded on the road. One thing leads to another, and he soon finds himself enmeshed in a plot involving a diamond robbery, gangsters and murder.
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.
A New York sculptor who opens a wax museum to showcase the likenesses of famous historical figures runs into trouble with his business partner, who demands that the exhibits become more extreme in order to increase profits.
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.
A serial killer terrorizes London. Each victim is found with a telegram signed "The Marquis." There seems to be no other common thread between the victims, and Scotland Yard is baffled. Novelist and amateur sleuth, Paul Temple, is warned to stay away from the case, but he and his glamorous wife Steve can never refuse a good mystery.
Special prosecutor John Conroy hopes to combat organized crime in his city and appoints his cop father Matt as chief investigator. John doesn't understand why Matt is reluctant, but cynical reporter Jerry McKibbon thinks he knows: he's seen Matt with mob lieutenant Harrigan. Jerry's friendship with John is tested by the question of what to do about Matt, and by his attraction to John's girl Amanda. Meanwhile, the threatened racketeers adopt increasingly violent means of defense.