Shaw Connolly is no stranger to trauma. As a fingerprints analyst, she’s one of the first on-site for crimes, including murder scenes and a mysterious string of arsons popping up throughout the rural Maine community her department serves. But the tragedy of her little sister’s disappearance sixteen years ago has always weighed on her the most; Thea is never far from her thoughts or dreams, and Shaw knows that her obsession with finding the truth about Thea is driving her husband away and impacting her two boys. Still, she can't let it go and has even started taking disturbing calls from a man named Anders Jansen who all but claims to have committed the crime. Anders taunts Shaw with hints and innuendo about what supposedly happened all those years ago. His calls go to the next level as he reveals just how much he knows about Shaw’s personal life, like her stalled career and ruined marriage. As his stalking escalates to threats on her and her family's lives, he begins to show just how dangerous he might be. Shaw is too desperate for answers to hang up now, just when she's getting close to finding proof. The only question left is what she must lose to learn the truth.