Van Heflin stars as the head of a city crime lab who tries to solve the murder of the town mayor by scientifically analyzing evidence.
as Gordon McKay
as Jane Mitchell
as Gerald I. Ladimer
as Mayor Daniels
as Captain Lynch
as Eddie Wright
as Matty
as Bessie Wright (as Catherine Lewis)
as Mrs. Daniels
as Boy in Car (uncredited)
as Chris Spyro - Cook (uncredited)
as Miss Huser - Mayor's Secretary (uncredited)
as Pierre - Headwaiter (uncredited)
as Suspect (uncredited)
as Taggart - Third Politician (uncredited)
as Rosson - Detective Grilling Eddie (uncredited)
as Police Chief Spencer (uncredited)
as Reporter (uncredited)
as Allison Stacy (uncredited)
as Keenan - Detective Grilling Eddie (uncredited)
as Clemence - First Politician (uncredited)
as Henchman Collecting from Eddie (uncredited)
as Forsythe - Second Politician (uncredited)
as Mack - Detective (uncredited)
as Restaurant Proprietor (uncredited)
as Steve - Detective (uncredited)
as Novak - Detective Grilling Eddie (uncredited)