Despite the film's title, socialite Linda Vickers (Virginia Mayo) isn't smart enough to steer clear of the gambling den operated by gangster Marty Fain (Bruce Bennett). Forced to join Fain's operation, Linda gets mixed up with duplicity and murder-not to mention a torrid romance with the gangster chief. Interestingly enough, Fain is the more sympathetic of the two leading characters. He seems like a basically nice guy stuck with not-so-nice associates, while Linda comes off as surfacey and selfish. In the end, however, it must be proven to the satisfaction of the censors that crime doesn't pay, especially when the life of Linda's brother "Doc" (Robert Hutton) is at stake.