London. A snowy December, 1888. Sherlock Holmes, 34, is languishing and back on cocaine after a disastrous Ripper investigation. Watson can neither comfort nor rouse his friend - until a strangely encoded letter arrives from Paris. Mlle La Victoire, a beautiful French cabaret star, writes that her illegitimate son by an English lord has disappeared, and she has been attacked in the streets of Montmartre.

December 1889. Fresh from debunking a 'ghostly' hound in Dartmoor, Sherlock Holmes has returned to London, only to find himself the target of a deadly vendetta. A beautiful client arrives with a tale of ghosts, kidnapping and dynamite on a whisky estate in Scotland, but brother Mycroft trumps all with an urgent assignment in the South of France. On the fabled Riviera, Holmes and Watson encounter treachery, explosions, rival French detective Jean Vidocq...and a terrible discovery.

It’s 1890 and the newly famous Sherlock Holmes faces his worst adversary to date - a diabolical villain bent on destroying some of London’s most admired public figures in particularly gruesome ways. A further puzzle is that suicide closely attends each of the murders. As he tracks the killer through vast and seething London, Holmes finds himself battling both an envious Scotland Yard and a critical press as he follows a complex trail from performers to princes, anarchists to aesthetes. 

It’s 1890, and the newly famous Sherlock Holmes faces his worst adversary to date - a diabolical villain bent on destroying some of London’s most admired public figures in particularly gruesome ways. A further puzzle is that suicide closely attends each of the murders. As he tracks the killer through vast and seething London, Holmes finds himself battling both an envious Scotland Yard and a critical press as he follows a complex trail from performers to princes, anarchists to aesthetes.