Sole Survivor is about a man named Joe who lost his wife and daughters in a plane crash. There were no survivors, all 350 passengers and crew perished. Joe is devastated. He quits his job, shuns his friends, and is simply waits to die.
One year later, his life is in ruins when he visits his family's grave. He meets a mysterious woman at the cemetery, who apparently survived the crash, but before he can question her she's chased off by two men with guns. This is the start of an adventure that will strain Joe's hold on reality and change his life forever. Is his family still alive?
This is classic Koontz. There's even a cameo by a golden retriever. This book is hard to put down so be prepared to lose some sleep. Very highly recommended.