Just One Look — Harlan Coben

When Grace Lawson picks up a newly developed set of family photographs, there is a picture that doesn't belong--a photo from at least twenty years ago with a man in it who looks strikingly like her husband, Jack. And though Jack denies her suspicions, he disappears that night, taking the photo with him.

In the days that follow, plagued by doubts about her marriage and herself, Grace begins to realize that others are looking for Jack and the photograph--including one fierce, silent killer who will stop at nothing. When the police won't help her, and neighbors and friends alike seem to have agendas of their own, she must confront the dark corners of her own tragic past to keep her children safe and learn the truth that might bring her husband home....