In cases ripped from the headlines, police investigate serious and often deadly crimes, weighing the evidence and questioning the suspects until someone is taken into custody. The district attorney's office then builds a case to convict the perpetrator by proving the person guilty beyond a reasonable doubt. Working together, these expert teams navigate all sides of the complex criminal justice system to make New York a safer place.

Teenager David Clemens develops a hysterical fear that he will die if he comes into physical contact with another person. Perturbed, David's overbearing mother places him in a home for mentally disturbed young people, but David remains withdrawn from the other patients and his psychiatrist. Over time, however, David grows interested in 15-year-old Lisa, who suffers from multiple personalities – one who can only speak in rhyme, and the other, a mute.