Imposter by L J Ross

In the remote hills of western Ireland, fear spreads as the locals struggle to make sense of a killer who is seemingly one of their own... Dr. Alexander Gregory, a psychologist recovering from the collapse of a high-profile criminal profiling unit, wants nothing more than a quiet life to finally sit and think things through. But his rare ability to understand the minds of violent offenders makes him hard to ignore-especially when a small town is shaken by a brutal murder. Reluctantly pulled into the case, Gregory finds himself confronting not only a cunning predator, but the darker corners of his own mind. From internationally bestselling author LJ Ross comes a tense, atmospheric thriller that explores how far we'll go to understand-and survive-the darkness around us"