Boris Karloff Double Feature: Mr. Wong, Detective/ The Fatal Hour (1940) Rating: Starring: Boris Karloff, Evelyn Brent, Maxine Jennings, Marjorie Reynolds, Charles Trowbridge, Grant Withers Director: William Nigh Category: Classics, Suspense, Mystery, Special Interest Studio: Koch Releasing Subtitles: Length: 138 mins     Mr. Wong, Detective (1938, 70 min.) The mystery begins when a shipping magnate is found dead of mysterious causes. James Lee Wong (Karloff) must find the killer and uncover the baffling method of this murder. This is the first (and many consider the best) movie in the Mr. Wong series. The Fatal Hour (1940, 68 min.) In the fourth movie of the series, Mr. Wong becomes involved in solving the murder of a police officer.