A hurricane swells outside, but it's nothing compared to the storm within the hotel at Key Largo. There, sadistic mobster Johnny Rocco holes up - and holds at gunpoint hotel owner James Temple, his widowed daughter-in-law Nora, and ex-GI Frank McCloud.

After serving a prison term for her boyfriend, a streetwise, middle-aged moll named Gloria stands up against the mobs, which is complicated by a six-year-old urchin with a will of his own, whom she reluctantly takes under her wing after his family has been gunned down.

A beautiful black gangster's moll flees to Harlem with a trunkload of gold after a shootout, unaware that the rest of the gang, and a few other unsavoury characters, are on her trail. A pudgy momma's boy becomes the object of her affections and the unlikely hero of the tale.

A revenge-seeking gangster is sent to prison after being framed for a crime he didn't commit. After seducing a beautiful young woman, he uses her to help him carry out his plot for vengeance, leading him to the crazy pyromaniac who set him up.

A moll, imprisoned after participating in a bank robbery, helps with a breakout plot.

Mary Carlton, who lives with her invalid father on a cotton plantation, receives a letter from Bob, her brother, in New York, stating that he faces death in the electric chair for a crime of which he claims to be innocent. Determined to save him, she goes there, learns of his association with an underworld gang, and begins to suspect Handsome Joe of a connection with the crime.

Con artists use a member of a European royal family to swindle a major jewelry company.