London, 1914. Called out to investigate the murder of a fashion model employed by the House of Blackley, a prestigious Kensington department store, Detective Inspector Silas Quinn of Scotland Yard's Special Crimes Department is thrown into the bizarre: the chief murder suspect is a monkey. He may be sceptical, but how will Quinn ever get to the truth when faced with the maelstrom of seething jealousy, resentment, forbidden desires and thwarted passion that is the Mannequin House?