A former FBI profiler, who is renowned for capturing a notorious serial killer, is lured out of retirement to track down a new killer who has a taste for families. The new killer, dubbed "The Tooth Fairy", is a complex character with a troubled past that leads him to commit his heinous crimes. As the profiler delves deeper into the investigation, he is forced to confront his own demons and the manipulative games of the serial killer he previously captured, who is now behind bars.

In "What The Dead Know" by Laura Lippman, a woman claiming to be one of the two missing Bethany sisters suddenly appears after thirty years, setting off a chain of events that forces the police, the media, and the families involved to revisit the unsolved case. As the truth slowly unravels, secrets from the past are exposed, revealing the devastating impact the disappearance had on the family and the lingering effects it has had on those left behind.