For three years, Sherlock Holmes was officially considered dead. Not even Dr. Watson, his closest confidant, knew that the master detective had merely faked his apparent death at the Reichenbach Falls. Now he is back and is helping Scotland Yard catch a copycat of Jack the Ripper when his brother Mycroft asks for his assistance. In a remote Irish coastal town, a horrific plague is spreading: the inhabitants are gradually going mad and turning into bloodthirsty cannibals. Sherlock is now to investigate a terrifying suspicion. Is it possible that a nefarious crime lies behind this epidemic? The "Sherlock Holmes Society" marks a turning point in the career of the king of deduction. Not only is he once again operating in public, but he also realizes more clearly than ever that...