Returning to school after the unsolved disappearance of her mother, teenager Jill Estrada can’t wait for things to return to normal . . . even as her friends become obsessed with Box Killers, a true-crime subscription game where each month’s “unsolved case” is custom-tailored to the life of its player. There’s only one catch: Jill’s game seems to be all too real—and when her clues begin to connect the dots to a very real series of disappearances in her hometown, Jill and her friends must conquer their fears and own personal struggles to solve the case. But can they find the killer before one of their own becomes the next victim?