First Grave on the Right by Darynda Jones

Charley Davidson is a part-time private investigator and full-time grim reaper. Meaning, she sees dead people. Really. And it's her job to convince them to "go into the light." But when these very dead people have died under less than ideal circumstances (like murder), sometimes they want Charley to bring the bad guys to justice. Complicating matters are the intensely hot dreams she's been having about an entity who has been following her all her life...and it turns out he might not be dead after all. In fact, he might be something else entirely. But what does he want with Charley? And why can't she seem to resist him? And what does she have to lose by giving in?

With scorching-hot tension and high-octane humor, First Grave on the Right is your signpost to paranormal suspense of the highest order.