She's a mercenary on a mission.
Bree Carson is an Undead assassin who makes her living using her supernatural abilities to kill criminals of all kinds, protecting humanity. But Chicago's new mayor wants her and all other paranormals either jailed or killed, and Bree's bad reputation has her at the top of the list.
When she's arrested one night, she's confronted by the mayor...but not for an execution. Ilona wants to hire Bree for a very specific mission that will prove to be personal and potentially harmful to them both.
Can they put their differences aside in order to save a life?