Private detective 'Duke' Martindale and his wife, Phyllis, an attorney, are working together to clear a girl falsely convicted of murdering a judge. Two people who know the truth are killed and 'Duke' Is shot at. Despite some interference by Police-Sergeant Brent, and a dangerous automobile chase and 'Duke' and Phyllis finding themselves prisoners of the real murderers, the case is solved.
Neil Hamilton
as Duke Martindel
June Storey
as Phyllis Martindel
Douglas Fowley
as Police Sgt. Brent
Evelyn Brent
as Hester Engle
Greta Granstedt
as Leila Bostwick
Malcolm 'Bud' McTaggart
as Joe Link
Jack Mulhall
as Jones - the Hotel Clerk
John Holland
as Guy Kisling
Emmett Vogan
as Dr. Grayson
Terry Walker
as Annie Lowell
Kenneth Harlan
as Detective Dunlap
Carl Stockdale
as Judge Leander Harding
