My favorite Koontz book is Lightning. It’s about this woman named Laura who seems to have a guardian angel in the form of a handsome, but rather cold-eyed blond man who is a little scary. He’s shown up at random intervals in her life to save her from horrific situations, but he never seems to age... it’s good!
Oooh, another one to add to the list, LOL. Thanks!
So far I’m finding Koontz’s books to be genuinely terrifying (the ones I’ve read, anyway).
I've only read four of his - but that's my favorite, too!