In a quiet, leafy suburb in upstate New York, a teenager has been sneaking into houses - and into the owners' computers as well - learning their secrets, and maybe sharing some of them, too. Who is he, and what might he have uncovered? After two anonymous letters are received, suspicion mounts. And when a woman down the street is found murdered, the tension reaches the breaking point. The new domestic suspense novel from the bestselling author of 'The Couple Next Door'.