Live Wire - Harlan Coben
I really enjoyed this book - more than I expected. I got it from the library simply because I wanted something quick and easy to read. It was that - but it also had a great plot and memorable characters. Unusually for me, this is actually the most recent book in a series featuring the same characters. I just might have to start from the beginning. It stands on it's own as well however so don't hesitate to pick it up if you want a quick but satisfying read.