Amelie Ainsworth is not alone in her head. Bound to a deal of desperation made when she was a child, Amelie's mind houses the Furies--the hawk and the serpent--lingering always, waiting for her to satisfy their bloodlust. After escaping the asylum where she was trapped for years, Amelie knows how to keep the Furies quiet. By day, she lives a normal life, but by night, she tracks down targets the Furies send her way. And she brings down Justice upon them.

Amelie's perfected her system of survival, but when she meets a mysterious boy named Niko at her new school, she can't figure out how she feels about him. For the first time, the Furies are quiet in her head around a guy. But does this mean that Amelie's finally found someone who she can trust, or are there greater factors at work? As Amelie's mind becomes a battlefield, with the Furies fighting for control, Amelie will have to decide which is worse: denying the only man she might ever love, or subjecting him to the fate the Furies want for him?