Charlie is the intended murder victim here, and he avoids death only by chance. To find the murderer (since, of course, murder does occur), Charlie must outguess Scotland Yard and New York City police.
Charlie Chan
Warner Oland
John R. Douglas
Alexander Kirkland
Inspector Fife
H.B. Warner
Shirley Marlowe
Marian Nixon
Inspector Flannery
James Kirkwood
Gloria Garland
Linda Watkins
Barry Kirk
Ralph Morgan
Kenneth Dunwood
James Todd
Garrick Enderly
Herbert Bunston
Kee-Lin
James Wang
Doctor
Joe Brown
Paradise
Charles McNaughton
Li Gung
Edward Peil Sr.