When Charlie's old friend from Scotland Yard is murdered when they attend a police convention in New York, Chan picks up the case he was working on. Sidney Toler,Marjorie Weaver,Robert Lowery,Ricardo Cortez,Donald MacBride,Melville Cooper,Joan Valerie,Kane Richmond,Victor Sen Yung,John Sutton,Leyland Hodgson,Clarence Muse,Frederick Worlock,Lal Chand Mehra,Trevor Bardette,Stanley Blystone,Nick Borgani,Eddy Chandler,Frank Coghlan Jr.,Catherine Craig,Alan Davis,Dorothy Dearing,Jimmie Dundee,Ralph Dunn,Frank Fanning,Carl Faulkner,Bud Geary,Shemp Howard,Paul Kruger,Jack 'Tiny' Lipson,Paul Palmer,Lee Phelps,Brick Sullivan,Charles Tannen,Shirley Warde
