Heartsick

I am reading the first in a "series" called "Heartsick" by Cain. It's about a female serial killer, and her last victim which is the homicide detective that was investigating her. After he was tortured and survived, he eventually gets back to work and there's another string of murders he begins to investigate along with a reporter that is shadowing him, with his permission. I don't usually go for these stories but when I do I always enjoy them, so maybe that should tell me something. Anyway, the original seriel killer chick is still involved but I haven't gotten into the meat of that yet. If all goes well, I'd like to read the rest in what is being called the "Archie Sheridan and Gretchen Lowell" series. Those are the names of the main detective dude and the female serial killer chica. There appear to be five more.