Former war-time Army buddies now students in college decide to rip off a Reno casino.

When an employee at an illegal gambling den dies suspiciously, her sister, Nancy, looks into the situation and falls for Johnny O'Clock, a suave partner in the underground casino. Selfish and non-committal by nature, Johnny slowly begins to return Nancy's affection and decides to run away with her, but conflict within his business threatens their plans. As Johnny tries to distance himself from the casino, his shady past comes back to haunt him.

Recently paroled from prison, legendary burglar "Doc" Riedenschneider, with funding from Alonzo Emmerich, a crooked lawyer, gathers a small group of veteran criminals together in the Midwest for a big jewel heist.

Petty crook and cop-killer Martin Rome, in bad shape from wounds in the hospital prison ward, still refuses to help slimy lawyer Niles clear his client by confessing to another crime. Police Lt. Candella must check Niles' allegation; a friend of the Rome family, he walks a tightrope between sentiment and cynicism. When Martin fears Candella will implicate his girlfriend Teena, he'll do anything to protect her. How many others will he drag down to disaster with him?

A small-time hood shoots his way to the top, but how long can he stay there?

A roustabout joins a traveling carny and schemes to figure out the mind-reading act of Mademoiselle Zeena and her alcoholic husband.

Fed up with her small-town marriage, a woman goes after the big time and gets mixed up with the mob.

Lawyer Joe Morse wants to consolidate all the small-time numbers racket operators into one big powerful operation. But his elder brother Leo is one of these small-time operators who wants to stay that way, preferring not to deal with the gangsters who dominate the big-time.

A crooked politician finds himself being accused of murder by a gangster from whom he refused help during a re-election campaign.

A telephone repairman in Los Angeles uses his knowledge of electronics to help a bookie set up a betting operation. After the bookie is murdered, the greedy technician takes over his business. He ruthlessly climbs his way to the top of the local crime syndicate, but then gangsters from a big East Coast mob show up wanting a piece of his action.

A spectacular heist starts to unravel as the crooks take it on the lam.

A con man tries to blackmail a Mexican gangster.

The lives of a young man and woman, an infamous gangster and a group of street kids converge one day in a volatile New York City slum.

Two young Chicago hoodlums, Tom Powers and Matt Doyle, rise up from their poverty-stricken slum life to become petty thieves, bootleggers and cold-blooded killers. But with street notoriety and newfound wealth, the duo feels the heat from the cops and rival gangsters both. Despite his ruthless criminal reputation, Tom tries to remain connected to his family, however, gang warfare and the need for revenge eventually pull him away.

A corrupt D.A. with governatorial ambitions is annoyed by an investigative reporter's criticism of his criminal activities and decides to frame the reporter for manslaughter in order to silence him.

During WWII several murders occur at a convalescent home where Dr. Watson has volunteered his services. He summons Holmes for help and the master detective proceeds to solve the crime from a long list of suspects including the owners of the home, the staff and the patients recovering there.

Truck driver Mike Lambert is a down-and-out mining engineer searching for a job. When his rig breaks down in a small town, he happens upon a venomous seductress. When her boyfriend robs a bank, they intend to frame Lambert.

Expecting the usual loss, a boxing manager takes bribes from a betting gangster without telling his fighter.

A calculating divorcée risks her chances at wealth and security with a man she doesn't love by getting involved with a hotheaded murderer.

In 1953, an innocent man named Christopher Emmanuel "Manny" Balestrero is arrested after being mistaken for an armed robber.