Murder in Half Moon Street — Irina Shapiro

When a gentlewoman is savagely murdered in her own bed, Lord Redmond and Inspector Haze must pick apart her seemingly blameless life to understand what drove her attacker to such frenzied rage-and how they managed to escape from a locked room in a house filled with people.The closer Redmond and Haze get to the truth, the more secrets they uncover, and the greater the risk the perpetrator will strike again.Will they solve the case before the killer claims another victim?