"Although Charlie and Lee are in Monaco for an art exhibit, they become caught up in a feud between rival financiers which involves the Chan's in a web of blackmail and murder."
Warner Oland
as Charlie Chan
Keye Luke
as Lee Chan
Virginia Field
as Evelyn Gray
Sidney Blackmer
as Victor Karnoff
Harold Huber
as French Police Inspector
Kay Linaker
as Joan Karnoff
Robert Kent
as Gordon Chase
Edward Raquello
as Paul Savarin
George Lynn
as Al Rogers
Louis Mercier
as Taxi Driver
George Davis
as Pepito
John Bleifer
as Ludwig
Georges Renavent
as Renault
George Sorel
as Gendarme
Eugene Forde
Director
Charles Belden
Screenplay
Earl Derr Biggers
Characters
Writer
Jerome Cady
John Stone
Associate Producer
Saul Wurtzel
Assistant Director
Daniel B. Clark
Director of Photography
Bernard Herzbrun
Art Direction
Nick DeMaggio
Editor
Herschel McCoy
Costume Design
Samuel Kaylin
Music Director
Bernard Freericks
Sound
Harry M. Leonard
Sol M. Wurtzel
Executive Producer