Private investigator Jack Taylor confronts an evil coterie named Headstone, who have committed a series of random, insane, violent crimes in Galway, Ireland.

"Jack Taylor is a disgraced ex-cop in Galway. Mourning the death of his father, he is slowly drinking to oblivion. He has an ability to "find things" and is asked to investigate a teenage suicide. This leads him into a dangerous confrontation with a powerful businessman. A darker conspiracy slowly unfolds. Aided by a punk girl, he fumbles towards a lethal solution."--

Clean and sober now that his dealer is in jail, Jack Taylor is stunned when the imprisoned man asks him to investigate the mysterious death of his sister, and becomes caught up in a scheme with deadly consequences for all concerned.

Jack Taylor brings death and pain to everyone he loves. His only hope of redemption, his surrogate son, Cody, is lying in the hospital in a coma. At least he still has Ridge, his old friend from the Guards, though theirs is an unorthodox relationship. When she tells him that a boy has been crucified in Galway city, he agrees to help her search for the killer. Jack's investigations take him to many of his old haunts where he encounters ghosts, both...

Juggling a precarious balance between his physical and addiction recovery efforts, former cop Jack Taylor investigates the work of a vigilante killer who has been sending him cryptic invitations to join him, an effort that jeopardizes Taylor's livelihood, friends and mental health.