A judge is murdered in Griffith Park and Brenda's investigation takes an unexpected twist when her best witness, or perhaps her prime suspect, is his teenage son with autism. Challenged by the boy's behaviors, but convinced he has the clue to unraveling the case, Brenda must try to understand him in order to learn what he knows.

Brenda and her team must find not only a killer, but also identify the killer's victim when a deranged, homicidal madman is set free due to mistaken identity. While trying to make sense of an array of complexities in this unusual matter, the case takes an even darker turn when Brenda becomes the center of the psychopathic killer's attention.

When a juror in the trial of an infamous mobster is found dead, Brenda and the Priority Homicide Division find that their involvement in solving the case may be affecting the jury's final decision. Complicating her personal life, Brenda faces another new challenge: a surprise visit from her mother.