This is a book that is part of an ongoing series that Linsay Sands has written. I have reviewed some of the earier books.
The premise is that there are some folks in the world who are “infected” with nano’s that were created by the mythic civilization of Atlantis in order to improve health, life and such. It did all that and made those infected immortal but had some side effects. Those infected need blood to survive and are sensitive to the damaging rays from the sun (not “poof” there you go kind of damage).
This story is about Jackie Morrisey a human private eye hired to help immortal Vincent Argeneau. Vincent is an actor and has a business putting on plays. Needless to say, there is immediate chemistry between these two even though Jackie was violated earlier in life by a bully immortal.
This story has some twists that some of the previous didn’t have but they aren’t terribly surprising. It’s still a fun, lite read. It does look like the author is setting up future story lines to go off in a different direction than previous stories using detectives as the center of the story line. That might be a little more deep.