When she was 13, Reggie Dufrane's mother, Vera, disappeared. Her hometown of Brighton Falls, Connecticut, had recently been haunted by a serial killer known as Neptune, and it was thought that Vera was his latest victim. When Vera's severed hand was found, her death seemed a certainty. 25 years later, Reggie is a successful architect who has left her hometown behind. But when she gets a call revealing that her mother has been found alive, Reggie must confront the ghosts of her past and find Neptune before he kills again. Superbly creepy stuff from the talented McMahon (Don't Breathe a Word, 2011).