The Gone Man — Gregory Stout

Nashville PI Jackson Gamble is back on the case, and this time he's on the trail of the mentally unstable son of wealthy real estate developer Richard Eberle, who himself has only months to live. Complications quickly arise, as not only has the young man in question left no hint as to where he might have gone, but also that, apart from his father, the very people who should be most concerned for the missing man's well-being seem determined to make sure he isn't found. In short order, what starts out as an ordinary missing person investigation quickly turns deadly, as bodies begin to pile up. And as the case unfolds, Gamble finds he is on the verge of discovering a dark and deadly family secret that threatens not also his reputation, but also his life.