A Stranger in the Family by Jane Casey: A Maeve Kerrigan Mystery

Helena and Bruce Marshall have not been the same since their nine-year-old daughter Rosalie disappeared 16 years ago, so when they are murdered Detective Sergeant Maeve Kerrigan and Inspector Josh Derwent have to investigate both incidents to determine if there is a connection. Maeve and Josh have not worked a case together recently, following their undercover work together in The Close, and his live-in girlfriend is jealous of Maeve, who tries to concentrate on the case at hand.