Tortured by sudden images of his own sister's murder, Benjamin Cady abandons Colorado for the shadows of Los Angeles, where relentless headaches and flashes of violent memories stalk him at every turn. The deeper he searches, the more the city feels disturbingly familiar-and the more his fractured memories suggest an unbearable truth: he may be the very killer he is searching for.
Meanwhile, Lieutenant Jim Banquer is drowning in bodies, each tied to witnesses struck by an inexplicable amnesia. To solve the case, he must unravel a sinister power play that stretches far beyond murder-and all roads lead back to Ben.