Mr. Wong, Detective

When a chemical manufacturer is killed after asking detective James Wong to help him, Wong investigates this and two subsequent murders. He uncovers a international spy ring hoping to steal the formula for a poison gas being developed by the first victim's company.
Director: William Nigh
Production Company: Monogram Pictures Corporation
Stars: Boris Karloff, Grant Withers, Maxine Jennings
Genre: Mystery,Murder,Crime