It was the year 1901, when Sherlock Holmes was at the very pinnacle of success, and his name was famous in every corner of the civilized world. People had even begun staring at him as he left his place at Baker Street. But then, very suddenly, it became dangerous to be a celebrated person in the city of London. In a very short space of three weeks, four people of great prominence were struck down in baffling murders. Finally, in great desperation, Inspector Lestrade asked Holmes and Watson to appear at Scotland Yard to help him solve the case.