I have read all of Griffin's novels and found then wonderfully complex and full of psychological twists and turns. I bought this book expecting more of the same, but was intrigued from the start in its relative simplicity; can this be Griffin? It was, because the predictions I had for the plot after the first chapter or two were all far to simplistic. Soon the twists became unfathomable and I became obsessed in how the plot would resolve itself. A simple concept, played out on a multiplex stage, and agreeably entertaining. I read this novel almost in one sitting, rare for me.