At the trial of the alleged killer of the city's mayor, fingerprint expert Jim Stover provides evidence that seems likely to seal the killer's conviction and execution. Stover strongly believes in the validity of fingerprint evidence but begins to harbor doubts about the guilt of the accused man. With the assistance of the dead mayor's daughter Carolyn, Stover starts his own investigation to discover whether the defendant is being framed.
Reception
In a contemporary review for the New York Daily News, criticDorothy Masters wrote: "The dramatics won't convince anybody, but the film does have a smattering of information on the methods employed in crime detection. It also has the dubious faculty of being able to provide some scantily clad females for promotional display in theatre lobbies—all of which is irrelevant to the plot and by no means as sensational as suggested."