A serial killer calling himself "The Lamb of God” is stalking the streets of New Orleans, but city officials want to keep the murders quiet. So it's up to homicide detective Sean Murphy to stop him the only way he knows how—by getting inside his head, thinking the way "he "thinks, anticipating his next move. But thinking like a madman bring with it some huge risks...as Murphy's about to find out. Anad the risks will only get deadlier when the killer learns Murphy's secret. Now the Lamb of God recognizes in Murphy a worthy opponent. Or perhaps a kindred spirit?