A chemical manufacturer is killed just after asking detective James Wong to help him. So detective Wong decides to investigate this as well as two subsequent murders.

Boris Karloff
as James Lee Wong

Grant Withers
as Police Capt. Sam Street

Maxine Jennings
as Myra Ross

Evelyn Brent
as Olga Petroff / Countess Dubois / Sophie Dome

George Lloyd
as Devlin

Lucien Prival
as Anton Mohl

John St. Polis
as Carl Roemer

William Gould
as Theodore Meisle

Hooper Atchley
as Christian Wilk

John Hamilton
as Simon Dayton
CinemaSerf
An almost comically heavily made-up Boris Karloff is all that stands between this mediocre murder-mystery and total obscurity. He portrays the super-sleuth "Mr. Wong" on the trail of a murderer who has killed at least three people. Our difficulty here is that the lighting and audio are so basic, tha...