Security by Gina Wohlsdorf

Review based on ARC (advanced reader copy received for free in exchange for an honest review).

I didn't really know that much about this book before starting it.. This is how it was described:
When the gleaming new Manderley Resort opens in twenty-four hours, Santa Barbara’s exclusive beachfront hotel will offer its patrons the ultimate in luxury and high-tech security. No indulgence has been ignored, no detail overlooked. But all the money in the world can’t guarantee safety. As hotel manager Tessa and her employees ready the hotel for its invitation-only grand opening, a killer is in their midst. One by one, staff are picked off with ruthless precision. And before the night is over, as Tessa desperately struggles to survive, it will become clear that the strangest and most terrible truth at Manderley is simply this: someone is watching.

With stunning ingenuity, Gina Wohlsdorf puts readers front and center as the elite resort becomes a house of horrors. Riveting to the final sentence, Security is fierce, wry, and impossible to put down. With a deep bow to the literary tradition of Stephen King, Edgar Allan Poe, and Daphne du Maurier, Wohlsdorf’s razor-wire prose blitzes readers with quick twists, sharp turns, and gasp-inducing terror. Security is at once a shocking thriller, a brilliant narrative puzzle, and a moving, multifaceted love story unlike any other.

So, I thought of it as a murder mystery with a bit of thriller thrown in. And maybe some lite horror.
In fact, this is a gory slasher novel with explicit sex scenes... which is apparently standard in the classic slasher novel.

It is gory, which doesn't actually bother me. It's explicit with exactly WHAT is being done to the victims and exactly how that looks and maybe feels. SO in that way, it's classic horror/slasher, and well done. It's not scary to the reader (well, at least not this reader), but it's a thriller, so it's tense. I never felt afraid in my empty house, but I was wound tightly while I was reading it, and eager to keep moving through the novel. As I mentioned above, there is explicit sex (though NOT by the perpetrators, so there's no rape element here). That's generally on my list of "not interested," and I didn't love it here either. I thought it was unnecessary and a bit distracting and clumsy to boot. But fortunately, Wohlsdorf moves pretty quickly through the scenes, so you're not dwelling in them. Which for me, was a definite plus. And surprisingly, it's funny. I absolutely loved the perspective. It is narrated from the perspective of someone watching the developments through security cameras and that character was probably my favorite of them all. And it's a murder mystery and a slasher thriller -- there are killings, but we don't know what's really happening or why.

The pace is good -- while I did not fly through the pages, I also did not pause much. I read the whole book in essentially one sitting, and it was a very satisfying read in the end. Entertaining, interesting (the unique point of view is a strong plus here), and, for me, well-resolved. I know some people did not love how it ended, but I thought it was as complete as it needed to be. To say any more would be spoiler, so I'll refrain.

Overall, . Recommended for horror/slasher/thriller fans. But not probably for people who don't like that/those genre(s)