Gerard O’Donovan puts Dublin on the map with this gripping tale featuring a diabolical serial killer steeped in Ireland’s Catholic history. Struggling to find his feet back in Ireland after a lengthy posting with Europol in Spain, drugs specialist Mike Mulcahy is plunged into unfamiliar territory when the daughter of a politician suffers a horrific sex attack. Dragged into the case against his will, Mulcahy becomes convinced there is more to it than a random frenzied sexual assault, especially when he discovers that the weapon used by the attacker to torture the victim was a crucifix. But know-it-all colleagues and politically motivated bosses, eager for a quick, uncontroversial result, ignore his belief that the attack had religious rather than sexual motivations.