In the fourth of the Hallmark Channel's feature-length "Sherlock Holmes" tales, Holmes (Matt Frewer) and Watson (Kenneth Welsh) investigate a series of savage murders apparently committed by a vampire -- and all occurring in the same Whitechapel district previously terrorized by Jack the Ripper. Holmes' services have been engaged by Brother Marstroke (Shawn Lawrence), who years earlier had lost an entire mission in British Guyana to an invading horde of rabid bats. Can it be that those long-ago bats and the current wave of killings are the handiwork of the legendary demon vampire Desmondo? The ever-logical Holmes doubts this theory...or at least he doubts it at the beginning of the story. The Case of the Whitechapel Vampire debuted October 27, 2002.