From Headquarters

SEE...The Miracles of Science the "lab" blood test x-ray and ultra-violet ray track down a murderer!

When a Broadway playboy is found dead, it's up to detective Jim Stevens to pick the murderer out of several likely candidates.

Drama Mystery Crime

George Brent

(Lt. Jim Stevens)

Margaret Lindsay

(Lou Winton)

Eugene Pallette

(Sgt. Boggs)

Edward Ellis

(Dr. Van de Water)

Robert Barrat

(Anderzian)

Theodore Newton

(Jack Winton)

Murray Kinnell

(Horton)

Hobart Cavanaugh

(Muggs Manton)

Hugh Herbert

(Manny Wales)

Henry O'Neill

(Inspector Donnelly)

Dorothy Burgess

(Dolly White)

Frank Darien

(Manley)

Kenneth Thomson

(Gordon Bates)

Ken Murray

(Mac)

Spencer Charters

(Teletype Man (uncredited))

Al St. John

(Detainee Touching Cigarette Pack (uncredited))

Ben Taggart

(Third-Degree Detective (uncredited))

Matt McHugh

(Man picked up by police wagon (uncredited))