Charlie is hired to deliver a pearl necklace to a millionaire at his ranch. When murder intervenes he disguises himself as a Chinese servant and begins sleuthing.
Warner Oland
as Charlie Chan
Drue Leyton
as Paula Graham
Donald Woods
as Bob Crawford
Paul Harvey
as J.P. Madden / Jerry Delaney
Murray Kinnell
as Martin Thorne
Reginald Mason
as Alexander Crawford
Virginia Hammond
as Mrs. Sally Jordan
Si Jenks
as Will Holley
Harvey Clark
as Prof. Gamble
Jerry Jerome
as Maydorf
Jack Carter
as Victor Jordan
James Wang
as Wong
