Chan is faced with suspects in a stolen atomic bomb formula case, that are being killed with bullets that are not fired from a gun.
as Charlie Chan
as Insp. Luis Carvero
as Tommy Chan
as Alfred Wyans (as Robert E. Keane)
as Chattanooga Brown
as Marguerite Fontain
as Countess Irena Masak
as Joseph Brandish
as Edmond Slade
as Charles Masack
as Prentiss
as Josephine
as Iris Ling (as Jean Wong)
as Walter Dorn (as Donald Dexter Taylor)
