When Dr. Tara Ross's teenage laboring patient refuses to deliver her baby on Halloween, Tara discovers that the teen wasn't just being superstitious, but that the holiday left her forever scarred. Her young patient's mother and father were murdered on Halloween fifteen years ago, the double murder remaining unsolved.

Enter her detective husband, Captain Jeffrey Corrigan, and his longtime sidekick, Lieutenant Michael Price, now both disabled. But that hasn't stopped them from doing what they do best—solving cold cases—the Halloween murders being their hottest cold case. But when they begin to unearth details of the case that had been suspiciously left cold and sealed away, consequences follow.