Cell by Stephen King

This book starts with such promise. The basic plot is that someone (who is never revealed) tampers with the mobile phone signal affecting the minds and behaviour of all who use one. This leads to the population being split between those affected (phone crazies) and those unaffected (normies). Cell follows the fortunes of a small group of normies trying to understand the events unfolding around them and their attempts to survive in a world where they don't know the rules anymore.
i started by saying that the book starts with promise, sadly it doesn't end that way. Part way through I found my attention drifting, no longer caring what happened to the characters. By the end I didn't care whether they lived or died, surely not the author's desired result. The ending I found to be especially weak, I won't go into details but the words "cop-out" sprang to my lips.