Dead Witch Walking is the story of Rachel Morgan, a witch and bounty hunter working in Cincinnati. Rachel works and hunts in the Hollows, a magical underworld ruled by sorcerers and undead vampires. Other supernatural creatures, exposed by a runaway virus that affects only pure humans, have been exposed and their integration into Earth's mainstream culture has been less than smooth. Rachel is quickly drawn into a brutal murder mystery in the Hollows, one she must solve or risk death.