Near an English seaside town, police detective Alec Nichols discovers sixteen horses' heads on a farm. After forensic veterinarian Cooper Allen travels to the scene, the investigators soon uncover evidence of a chain of crimes in the community all culminating in the reveal of something deadly lurking in the ground itself. In the days that follow, the town slips into panic and paranoia. Anyone could be a suspect... A BBC Two Between the Covers Book Club pick.