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
