November 1902. Fog and shadows engulf the city. The murky world of the menacing London docks collide with the glamour and glitter of Edwardian high society as sleuth Sherlock Holmes and Dr John H Watson are reunited to solve a case which threatens to overwhelm the privilege and tranquillity of aristocratic society. When the murder of a penniless shop-girl is linked to the body of debutante Lady Alice Burnham, Holmes immediately begins to piece together the clues: a pair of dancing shoes, a rogue fingerprint, a strong smell of chloroform, a broken glass. The duo must use everything at their disposal to prevent another death: a perilous public disguise, a high risk trap, a clandestine exhumation. Notwithstanding the absurd reticence of the nobility and the blunderings of the police, Holmes inches closer to his extraordinary conclusions. But he has not calculated for the complex and dark passions of his adversary...