Arthur Conan Doyle

Follow the world's most famous detective as he solves three of his greatest mysteries: The Adventure of the Speckled Band, The Adventure of the Blue Carbuncle, and A Scandal in Bohemia. In their efforts to uncover the truth, Sherlock Holmes and Dr Watson encounter all kinds of mystery, murder, and impossible crimes.

Holmes and his assistant Dr. Watson are on the trail of Lord Blackwood, a serial killer they captured and saw executed, but has apparently risen from the grave to resume his killing spree.

When assorted people start having inexplicable delusions that lead to their deaths, a teenage Sherlock Holmes investigates.