In Paris, Bob Montagne is practically synonymous with gambling -- and winning. He is kind, classy and well-liked by virtually everyone in town, including police inspector Ledru. However, when Bob's luck turns sour, he begins to lose friends and makes the most desperate gamble of his life: to rob the Deauville casino during Grand Prix weekend, when the vaults are full. Unfortunately, Bob soon learns that the game is rigged and the cops are on to him.
When Johnny Matlock whisks away a cold war secret from under the noses of Berlin's top secret agents, his every move is followed when he returns to England. His girlfriend Paula is kidnapped but her handbag is discovered at the scene of the crime by the aristocratic private eye, Duke Martin. Inside it he discovers the secret formula that the agents are searching for and tracks down her sister Paula. As Johnny grows frantic for the safe return of his girlfriend, Duke Martin plays a deadly game of double bluff with the enemy agents.
Career criminal Johnny Clay recruits a sharpshooter, a crooked police officer, a bartender and a betting teller named George, among others, for one last job before he goes straight and gets married. But when George tells his restless wife about the scheme to steal millions from the racetrack where he works, she hatches a plot of her own.
When illegal card dealer and recovering heroin addict Frankie Machine gets out of prison, he decides to straighten up. Armed with nothing but an old drum set, Frankie tries to get honest work as a drummer. But when his former employer and his old drug dealer re-enter his life, Frankie finds it hard to stay clean and eventually finds himself succumbing to his old habits.
Gambler Nathan Detroit has few options for the location of his big craps game. Needing $1,000 to pay a garage owner to host the game, Nathan bets Sky Masterson that Sky cannot get virtuous Sarah Brown out on a date. Despite some resistance, Sky negotiates a date with her in exchange for bringing people into her mission. Meanwhile, Nathan's longtime fiancée, Adelaide, wants him to go legit and marry her.
A hugely successful DA goes into private practice after sending a man to the chair -- only to find out later he was innocent. Now the drunken attorney only seems to represent criminals and low lifes.
Davey Gordon, a New York City boxer at the end of his career, falls for dancer Gloria Price. However, their budding relationship is interrupted by Gloria's violent boss, Vincent Rapallo, who has eyes for Gloria. The two decide to skip town, but before they can, Vincent and his thugs abduct Gloria, and Davey is forced to search for her among the most squalid corners of the city, with his enemy hiding in the shadows.
In 1927, a Kansas City, Missouri cornet player and his band perform nightly at a seedy speakeasy until a racketeer tries to extort them in exchange for protection.
Three convicts escape from prison on Devil's Island just before Christmas and arrive at a nearby French colonial town. They go to the store of the Ducotels, the only store that gives supplies on credit. They initially intend to take advantage of them but have a change of heart after they find the family is in financial troubles.
Special investigator Duke Martin is in London to investigate the authenticity of a rare postage stamp called the Barbados Overplate. Someone is willing to commit murder to get his or her hands on the stamp, which puts a crimp in Duke's efforts to romance every beautiful woman he meets.
Richard Dadier is a teacher at North Manual High School, an inner-city school where many of the pupils frequently engage in anti-social behavior. Dadier makes various attempts to engage the students' interest in education, challenging both the school staff and the pupils. He is subjected to violence as well as duplicitous schemes.
Mr. Dean's body is found face down in the fireplace, burned beyond recognition. Nightclub-singer Eden Lane is convicted of the crime. She is escorted to prison by one of the arresting detectives when she convinces him that she just spotted the murderer outside their train.