"From the New York Times best-selling author of The Overnight Guest comes a twisty locked-room thriller about a mysterious, high-stakes game show that proves life-threatening. The Best Friend. The Confidant. The Senator. The Boyfriend. The Executive. Five contestants have been chosen to compete for ten million dollars on the game show One Lucky Winner. The catch? None of them knows what (or who) to expect, and it will be live streamed all over the...