 Sneak thief Chuck Jackson steals valuable uncut jewels from a car belonging to a gemologist. The theft is not detected until Officer Johnson impounds the car after the gemologist suffers an ultimately fatal heart attack while driving home. The victim s irate daughter accuses Officer Johnson of the theft, since he was the only one known to have access to the vehicle. Dan Mathews works diligently to solve the theft and clear his officer s name before a newspaper reporter breaks the story.