THE INSTANT NEW YORK TIMES BESTSELLERNamed a most anticipated summer book by USA Today, People, E! News, Cosmopolitan, PureWow, CNN.com, New York Post, CrimeReads, POPSUGAR, and more The bestselling author of Final Girls and Survive the Night is back with his “best plot twist yet.” (People, "Best Summer Books")Be careful what you watch...