"Mystery of the Munitions Murders!"
A private eye and his secretary probe a murder and find an international spy.
William ClemensDirector
Robbie Vance
Sam Campbell
Ann Marlow
Paul Goff
Irene Carr
Larry Borden
Max Ambers
District Attorney Hyatt
Roy - Waiter (uncredited)
Deputy (uncredited)
Harry - Jailer (uncredited)
Horace Grayson (uncredited)
Hotel Tenant (uncredited)
Dad Martin (uncredited)
Hospital Attendant (uncredited)
Mr. Dinwiddle - Desk Clerk (uncredited)
Bellboy (uncredited)
Frank (uncredited)
Maisie - Switchboard Operator (uncredited)
Jimmy - Bartender (uncredited)
