A young woman's body is found by her own father, in a park near their home in Queens. After DNA evidence helps the NYPD lock in on a suspect, a judge's decision to suppress evidence leads to a mistrial, jeopardizing a possible conviction. 

When a quadruple homicide is discovered in the ashes of a D.C. mansion fire, a small piece of evidence points to a monster with a grudge, a violent past, and a long rap sheet. A nationwide manhunt ensues to finally bring the killer to justice.