If you like Koontz's mainstream thrillers (no supernatural content), you'll love this one. My review follows:

“Good Guy” Tim Carrier, a mason by trade with a body (and head) like John Wayne, finds his low-key lifestyle interrupted by a bizarre barroom encounter, during which he’s handed an envelope full of money and kill instructions intended for a contract killer. Forced to make the first of what will be many quick life-or-death decisions, Tim removes the target’s photograph and address from the envelope and attempts to call off the kill minutes later, when the real assassin arrives at the bar, by posing as the buyer and offering up the $10,000 as a no-kill fee in consideration for his change of heart. As Tim suspects, however, this ruse buys him only limited time, which he uses to alert the intended victim, the physically lovely but psychologically fractured Linda Paquette, of the murder plot. In short, an opening hook that I found every bit as irresistable as the one that kicked of last year’s “The Husband.”

What ensues is a classic cat-and-mouse thriller, in which Tim and Linda must draw upon all of their physical and mental reserves to stay a step ahead of an assassin for whom the term psychopath doesn’t begin to do justice. What’s worse, he seems to, almost magically anticipate Tim and Linda’s every move, giving the impression that he’s acting under the direction of a group with law enforcement connections and daunting technological capabilities. As always, Dean Koontz finds clever ways to build suspense, telling the story from several points of view and propelling the story line forward in bite-sized chapters that could easily be visualized as scenes in a blockbuster movie.

Here Koontz uses another interesting technique to build suspense that I found particularly effective. While we gradually learn, through Tim’s incredible skill in evading the killer and his unflappable grace under pressure, that he must harbor a past profession in which he cut things other than stone, Koontz withholds this secret from the reader until the final pages of the book. He does the same with Linda and her past, contributing not only to the suspense but also to the extended first-date-type-thrill of romance that blossoms amidst the carnage.

Other than one creaky floorboard in the plot structure (the explanation behind the contract on Linda’s life), “The Good Guy” is, cover to cover, one of the finest thrillers I’ve ever read. Some professional critics have faulted the ending, something that Koontz has struggled with in some of his books, but I thought he nailed this one perfectly. in Tim Carrier, he has also created a humble hero for our times and seemingly left open the possibility for a sequel.

I thought it was just okay. I have read almost every Koontz novel prior to this one, and I thought THE GOOD GUY was a bit of a retread, with Koontz recycling plot and character elements from prior books. If this was the first Koontz novel I had ever read, i would have liked it much more.