When a beautiful and profoundly autistic boy named Hector is found hideously throat-cut in a Bronx row house, it's his father, a callous and deceitful widower with gang ties, who emerges as the prime suspect. Reluctantly catching the case is A.D.A. Alex Greco, himself the wounded father of an autistic son who died at age three. A relative newcomer to the challenging and often brutal world of New York's toughest borough, Alex has been excelling in this environment for two years, rebuilding his shattered personal life and finding love again with a brilliant forensic psychologist, Dr. Nikki Jaynes.

But Alex guards a horrific secret from his own past, and prosecuting Hector's case will do more than re-open old wounds - it may tear apart his present life as well. Teamed up with two savvy and colorful NYPD detectives, they build a strong case against the boy's father, Norman Ruiz. But twists unfold as similarities are discovered by the Medical Examiner between Hector's case and two recent adult murders, a fact which could exonerate Norman or make him a suspect in multiple homicides. Another murder shatters the case from the inside out. All the while, echoes from Alex's compromised past continue to reverberate, threatening everything he's rebuilt as a case that now haunts him speeds toward its shocking conclusion.