'What would cause someone to want so many people, surely many of them strangers, to slaughter each other?' The scene that greets Lieutenant Eve Dallas and her team one terrible evening in New York is more shocking than any of them have ever witnessed. The usually comfortable downtown bar is strewn with bodies - office workers who have been sliced, bludgeoned or hacked to death with the nearest weapon available. It appears they all turned on each other in a desperate blinding rage. As Eve and her husband Roarke - who owned the bar among his many properties - investigate the big-business workers of the city, they link the attacks back to the Urban Wars and the chemical warfare used all those years ago. With another slaughter imminent, Eve must turn to unexpected sources in order to stop a killer who is getting revenge by creating mass carnage...