Homicide detective Bryan Clauser is losing his mind. How else to explain the dreams he keeps having—dreams that mirror, with impossible accuracy, the gruesome serial murders taking place all over San Francisco? How else to explain the feelings these dreams provoke in him—not disgust, not horror, but excitement.

As Bryan and his longtime partner, Lawrence “Pookie” Chang, investigate the murders, they learn that things are even stranger than they at first seem. For the victims are all enemies of a seemingly ordinary young boy—a boy who is gripped by the same dreams that haunt Bryan. Meanwhile, a shadowy vigilante, seemingly armed with superhuman powers, is out there killing the killers. And Bryan and Pookie’s superiors—from the mayor on down—seem strangely eager to keep the detectives from discovering the truth.

Doubting his own sanity and stripped of his badge, Bryan begins to suspect that he’s stumbled into the crosshairs of a shadow war that has gripped his city for more than a cent