California, 1986. A 911 call from a small child sends the idyllic town of Oak Knoll into a tailspin. Then a brutal crime scene is discovered: the body of Marissa Fordham with her young daughter, Haley, injured but alive. Sheriff's detective Tony Mendez faces a puzzle with nothing but pieces that won't fit. just when it seems Marissa has taken her secrets to the grave, they uncover a fact that puts Anne and Haley directly in the sights of a killer: Marissa Fordham never existed.