Philo is in Vienna working for the US Government to see if Archer Coe is selling aircraft designs to foreign powers. He grabs the plans with Archer's signature, but is captured by police before he can escape. Deported he comes back to America and plans to confront Archer, but Archer is found dead in his locked bedroom with a gun in his hand. While it looks like a suicide, Vance knows better and the coroner finds that Archer has been shot, hit with a blunt instrument and stabbed - making suicide unlikely. But Vance is on the case and is looking to see if government secrets have been sold and who has murdered Coe. This is a remake of "The Kennel Murder Case" using aircraft designs and espionage instead of Chinese porcelain and dog shows.
as Philo Vance
as Hilda Lake
as Markham
as Ryan
as Doris Delafield
as Tom McDonald
as Philip Wrede
as Gamble
as Dr. Doremus - Coroner
as Eduardo Grassi
as Du Bois - Fingerprint Man
as Hennessey - Markham's Assistant
as Archer Coe
as Brisbane Coe
as Ling Toy
as MacTavish (uncredited)
as First Reporter (uncredited)
as Hans Snauble (uncredited)
as Austrian Judge (uncredited)
as Capt. Lugo (uncredited)
as Sorrento Sailor (uncredited)
as 2nd Photographer (uncredited)
as Train Porter Asked to Send Telegram (uncredited)
as Markham's Secretary (uncredited)
as Austrian Sergeant (uncredited)
as Coroner's Assistant (uncredited)
as Third Reporter (uncredited)
as Hertz (uncredited)
as Clerk at Hotel Nino in Chicago (uncredited)
as Charles (uncredited)
as Avery (uncredited)
as Mrs. Fritz Snauble (uncredited)
as Aeronautics Department Sentry (uncredited)
as Doorman (uncredited)
as Steamship Clerk (uncredited)
as 4h Reporter (uncredited)
as Investigator Snitken (uncredited)
as Nazi Officer at Dock (uncredited)
as 2nd Reporter (uncredited)
as 1st Photographer (uncredited)
as Long-Distance Operator (uncredited)
as Austrian Lieutenant (uncredited)
