Hold Tight by Harlan Coben

A fascinating, compulsive page-turner that weaves together a group of families in a New Jersey suburb. When teenager Adam Baye's best friend commits suicide, Adam's parents become concerned that they are 'losing' him and decide to install spyware on his personal computer. When Adam disappears, his parents get swept up into a criminal investigation as they frantically try to find their missing son. The secrets that lie buried in this seemingly normal community create a web of intrigue that slowly connects them all to an explosive climax.