Detectives and attorneys struggle to understand a man's mental state in the wake of a shooting that killed four people in broad daylight, and the entire case rests on the man's sanity and the reaction of the victims' families.

When a young rapper is shot in a well-to-do suburban neighborhood, detectives search for a suspect, and at trial, the defense accuses the prosecution's key witness of actually being the one to pull the trigger and end the victim's life.