She likes the sudden seconds of sheer terror. The neon dreams fit perfectly with the dreams that wake her up at night: about the man she loved and lost, about the constant temptations in her life, and about the odds that inevitably she’ll be in the right place at the right time to look naked, human madness in the eye.Welcome to the world of Susan Pulaski, an unconventional and unusually subversive Las Vegas police behaviorist who’s already been canned once and has never been needed more. In the Sin City, someone is ritually murdering handpicked victims, each with dirty secrets in their past. The killer’s gimmick: Not only does he leave behind parts of the victims’ bodies, he also writes obscure mathematical formulas–in their blood.