Warren Douglas

After getting a seemingly perfect new secretary, a private detective finds himself embroiled in the case of a notorious gossip columnist's murder.

Soon after a Chinese princess comes to the U.S. to buy planes for her people, she is murdered by a poison dart fired by an air rifle. To help solve the crime, Roland Winters as "Charlie Chan" is assisted by his son, Victor Sen Yung as "Tommy Chan" and comic sidekick, Mantan Moreland as "Birmingham Brown", Chan's chauffeur/butler.