This book is full of unreliable narrators and not necessarily likable characters. It is well written and the plot moves along fast enough so that the suspense is maintained, and yet it was ultimately a bit disappointing. I can't really put my finger on just why, other than the fact that there weren't any characters in it that I could really relate to. I think if there had been at least one or two it would have made for a better read. If I was using a 5 star rating, I think I would give this one about a 3.5--interesting and worth reading, just not top of the line (but then again I am a tough reviewer, rarely giving a book 5 stars).
Synopsis: Rachel takes the same commuter train every morning. Every day she passes a stretch of cozy suburban homes. Each day the train stops at a signal that allows her to watch the same couple breakfasting on their deck. She starts to feel like she knows them, and even assigns them names in her head. She sees their life as perfect, not unlike hers until just recently. And then she sees something that shocks her. As the train moves on from the stop, everything has changed and she is unable to keep it to herself. She tells the police what she knows and becomes entwined in what happens next, as well as the lives of everyone involved. Now she is wondering if she has done more harm than good.
So, pick it up and read it and see what you think.