After surviving the brutal stabbing that leaves her two sons dead in 1996, Dallas housewife Darlie Routier urges police to find the intruder she claims is the killer. To her horror, she becomes the No. 1 suspect. In his first interview in nearly 15 years, Darlie's husband, Darin Routier, gives an emotional telling of the events leading up to her arrest while the prosecutors, Greg Davis and Toby Shook, walk through the crime scene as they prepare their case.