Detective Charlie Chan springs into action when top officials of a New Orleans chemical company begin dropping like flies.
Roland Winters
as Charlie Chan
Virginia Dale
as Rene Blanchette
Mantan Moreland
as Birmingham Brown
John Gallaudet
as Pete McNalley
Victor Sen Yung
as Tommy Chan
Carol Forman
as Nita Aguirre
Douglas Fowley
as Grock
Harry Hayden
as Oscar Swenstrom
Emmett Vogan
as Henri Castanaro
Howard Negley
as Andre Pereaux
Stanley Andrews
as Theodore Von Scherbe
Boyd Irwin
as Simon LaFontanne