Chicago Confidential may not have been the best of the late-1950s "expose" films, but it certainly boasted one of the most impressive casts. Based on the factual best-seller by Jack Lait and Lee Mortimer, the film stars Brian Keith as a State Attorney who vows to bring corrupt Chicago union officials to justice. It turns out that the union crooks are in cahoots with a gambling syndicate, conspiring to frame uncooperative union leader Dick Foran for murder. With the considerable assistance of his coworker-fiancee Beverly Garland, Keith strives to prove Foran's innocence and punish the genuine miscreants. Crucial to the plotline is nightclub comedian Buddy Lewis, cast as an impressionist who helps to frame the troublesome Foran; also in the cast are such crime-flick perennials as Elisha Cook Jr., Paul Langton, Douglas Kennedy, Jack Lambert, John Indrisano, Phyllis Coates, and Thomas B. Henry.