The heist at an 1890 soiree is flawlessly executed, and the Calgurie Emerald that adorned the neck of Mrs. Chumley Orr rests in the pocket of clever gentleman thief Nicholas Revel. But something else happens that night that even Revel couldn't foresee. A bobby is murdered nearby, the latest in a string of murders of London constables. The crime convinces authorities that the thief and the killer are the same, so Scotland Yard turns its
