Pulled from the darkness of Hell, a demon named Gil finds herself on Earth in a human body, though she didn't acquire a soul in the transition. When Gil runs into the necromancer and trickster Meros, who coerces and traps souls into his mirror to gain power, she finds someone she forges a kinship with. As the pair travel around playing their tricks on people, they fail to realize the Lord of Hell, Rahee is looking for the missing demon.
With the help of those she meets while on her journey across Earth, Gil takes on her fate and the Lord of Hell with an odd kind of innocence that endears her to angels, lost souls, and mystics alike. Being a demon means she does what she is told, so when she finds herself in control of a powerful talisman, everything changes, and without a soul, she has no say in what the outcome of a war for that power will be.
Death is final when you don't have a soul.