New York gangster Ben ‘Bugsy’ Siegel takes a brief business trip to Los Angeles. A sharp-dressing womanizer with a foul temper, Siegel doesn’t hesitate to kill or maim anyone crossing him. In L.A. the life, the movies, and most of all strong-willed Virginia Hill detain him while his family wait back home. Then a trip to a run-down gambling joint at a spot in the desert known as Las Vegas gives him his big idea.

Miles Logan is a jewel thief who just hit the big time by stealing a huge diamond. However, after two years in jail, he comes to find out that he hid the diamond in a police building that was being built at the time of the robbery. In an attempt to regain his diamond, he poses as a LAPD detective

Corky, a tough female ex con and her lover Violet concoct a scheme to steal millions of stashed mob money and pin the blame on Violet’s crooked boyfriend Caesar.

Doc Jenkins is a singer/songwriter who tries to leave his singer/songwriter roots to be a music “mogul”, and gets tangled up in a bad publishing deal. He enlists a team of cronies, including a young singer and his former singing partner, Blackie Buck, and together they execute his plan to get out of the deal. He gets help from a stereotypical small-time concert promoter. Honey Carder is the love interest/ex-wife.

John Arnold DeMarco is a man who believes he is Don Juan, the greatest lover in the world. Clad in a cape and mask, DeMarco undergoes psychiatric treatment with Dr. Jack Mickler to cure him of his apparent delusion. But the psychiatric sessions have an unexpected effect on the psychiatric staff and, most profoundly, Dr Mickler, who rekindles the romance in his complacent marriage.