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.

Starring:

Boris Karloff, Clancy Cooper, Dick Reinhart, Ed Cassidy, Evelyn Brent, Frank Bruno, George Lloyd, Grant Withers, Herbert Evans, Hooper Atchley, John Hamilton, John St Polis, Lee Tung Foo, Lester Dorr, Lucien Prival, Lynton Brent, Maxine Jennings, Wheaton Chambers, Wilbur Mack, William Gould

Genre:

Action, Adventure, Crime, Drama, Mystery