At four months old, Olivia Dahl was almost murdered. Driven by haunting visions, her mother became obsessed with the idea that Olivia was a changeling, and that the only way to get her real baby back was to make a trade with the "dead women" living at the bottom of the well. Now Olivia is ready to give birth to a daughter of her own...and for the first time, she hears the women whispering. Everyone tells Olivia she should be happy. She should be glowing, but the birth of her daughter only fills Olivia with dread. As Olivia's body starts giving out, slowly deteriorating as the baby eats and eats and eats, she begins to fear that the baby isn't her daughter at all and, despite her best efforts, history is repeating itself. Soon images of a black-haired woman plague Olivia's nightmares, drawing her back to the well that almost claimed her life—tying mother and daughter together in a desperate cycle of fear and violence that must be broken if Olivia has any hope of saving her child...or herself.