Irish mystery

An anonymous call comes in to the Stonybatter police station, instead of the emergency line in Dublin. The caller says that a woman may have fallen and hurt inside her own home. When police arrive, all the doors are locked and they find Aislinn Murray dead, but not from a fall. The case gets passed on to the Murder Squad. Detectives Conway and Moran have the case handed to them by their boss, just as they are looking to clock out and go home. Antoinette Conway is the only woman on the squad, and isn't well liked, she's brusque, confrontational, and keeps to herself. She's immediately

An open-and-shut domestic murder case turns out to be much more than Antionette Conway or Stephan Moran bargained for when assigned Aislinn Murray’s case. Beautiful Aislinn is found dead in her perfectly decorated home, alone, with the doors locked. Her boyfriend Rory Fallon has a dinner date at Aislinn’s that night but she never answers the door or his many calls.

Each of French's books revolve around a different detective in the Dublin Murder Squad. The Trespasser is told from Conway’s point-of-view. As the only woman, and therefore an outsider in the squad room, it is hard to gain respect