If You Tell: A True Story of Murder, Family Secrets, and the Unbreakable Bond of SisterhoodA #1 Wall Street Journal, Amazon Charts, USA Today, and Washington Post bestseller. #1 New York Times bestselling author Gregg Olsen's shocking and empowering true crime story of three sisters determined to survive their mother's house of horrors. After more than a decade, when sisters Nikki, Sami, and Tori Knotek hear the word mom, it claws like an eagle's talons, triggering memories that have been their secret since childhood. Until now. For years,