MR WONG DETECTIVE (1938)

WHEN A CHEMICAL MANUFACTURER IS KILLED AFTER ASKING DETECTIVE JAMES WONG TO HELP HIM, WONG INVESTIGATES THIS AND TWO SUBSEQUENT MURDERS. HE UNCOVERS AN INTERNATIONAL SPY RING HOPING TO STEAL THE FORMULA FOR A POISON GAS BEING DEVELOPED BY THE FIRST VICTIM'S COMPANY. STARRING BORIS KARLOFF, GRANT WITHERS, EVELYN BRENT, MAXINE JENNINGS.