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.
An American insurance adjuster, stranded in Havana, becomes involved with an archaeologist and a collector of antiquities in a hunt for treasure in the Mexican ruins of Zapoteca.
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 Scotsman abruptly breaks off his engagement to pretty Kitty and moves to his uncle's castle in the Scottish highlands. Kitty and her aunt follow Gerald a few weeks later, and discover he has suddenly aged. Some mysterious things happen in a maze made from the hedges adjoining the castle.
A young man plots revenge against the woman he believes murdered his cousin, but his plans are shaken when he comes face to face with the enigmatic beauty.
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.
Sister Mary presides over a convent where a convicted murderess, who is being escorted to Death Row, is stranded by bad weather. She is slowly becoming convinced that Valerie is innocent so Sister Mary sets about to clear the girl and bring the real killer to justice.
Concentration camp survivor Victoria Kowelska finds herself involved in mystery, greed, and murder when she assumes the identity of a dead friend in order to gain passage to America.
An Englishman has been working in the US so long he now speaks with an American accent. He is drafted into the British Army during WWII but is injured and loses his memory. Because he talks like an American, the doctors repatriate him to the States where he is housed with a New York family. After the war they all travel throughout Europe, searching for the women he still remembers in the hope of restoring his lost memory
Near the end of World War II, a secret American raid on an enemy transportation hub goes very wrong when a turncoat warns the enemy. Led by Capt. Webster Carey, the mission causes the deaths of many bystanders -- among them, Carey believes, his Italian girlfriend, Giulia de Graffi. Back home, Carey stumbles across evidence that might uncover the identity of the informant. But, when he returns to Italy to get even, Carey is stunned by what he finds.
When he's discharged from a military hospital, ex-GI Bob Corey goes on a search for his army buddy Steve Connolly. A reformed crook, Connolly is on the lam from a trumped-up murder rap, and Corey hopes to clear his pal. Tagging along is Army nurse Julie Benson, who has fallen for Corey.
Rural Mississippi in the 1940s: Lucas Beauchamp, a local black man with a reputation of not kowtowing to whites, is found standing over the body of a dead white man, holding a pistol that has recently been fired. Quickly arrested for murder and jailed, Beauchamp insists he's innocent and asks the town's most prominent lawyer, Gavin Stevens, to defend him, but Stevens refuses. When a local boy whom Beauchamp has helped in the past and who believes him to be innocent hears talk of a mob taking Beauchamp out of jail and lynching him, he pleads with Stevens to defend Beauchamp at trial and prove his innocence.
In postwar Vienna, Austria, Holly Martins, a writer of pulp Westerns, arrives penniless as a guest of his childhood chum Harry Lime, only to learn he has died. Martins develops a conspiracy theory after learning of a "third man" present at the time of Harry's death, running into interference from British officer Major Calloway, and falling head-over-heels for Harry's grief-stricken lover, Anna.