On January 14, 2018, a seventeen-year-old girl climbed out of the window of her Perris, California home and dialed 911 with shaking fingers. Struggling to stay calm, she told the operator that she and her twelve siblings, ranging in age from two to twenty-nine, were being abused by their parents. When the dispatcher asked for her address, the girl hesitated. 'I've never been out,' she stammered. To their family, neighbors, and online friends, Louise, and David Turpin presented a picture of domestic bliss: dressing their thirteen children in matching outfits and buying them expensive gifts. But what police discovered when they entered the Turpin family home would eclipse the most shocking child abuse cases in history. In the first significant account of the incident, investigative journalist and author John Glatt delves into the disturbing details and recounts the bravery of the thirteen siblings in the face of unimaginable horror.