A struggling songwriter abandons his girlfriend for a flashy woman after landing a hit.

Reverend Jesse Hampton has a bone to pick with the management of Club Harlem, a wildly popular nightspot where drinking and dancing are the rule. No old-fashioned prude, the Reverend tries to see the positive side of the juke joint activities, knowing that the jitterbuggers are basically decent kids who just need to blow off a little steam. But the preacher sees red when the club opens on the Sabbath, threatening to turn the good townsfolk into Sunday sinners. An upcoming dance contest seems destined to become a showdown between the powers of light and darkness.