The body of an elderly woman is discovered in Gramercy Park. She was killed in broad daylight, but there is not a single witness. Inspector Louis Markowitz, Special Crime Section, dies defending another Gramercy Park victim and Sergeant Kathy Mallory takes up the case. She’s a crime analyst who prefers computers to people. Now for the first time she must do field work. Her motives are personal – Markowitz rescued her as a child from a life of petty crime on the New York streets and adopted her as his daughter. The investigation into a possible serial killer becomes an investigation into Mallory’s damaged psyche – and into a disturbed and dangerous urban universe.