Aspiring musician Ruby Tucker has had enough of her small rural town and dysfunctional family. But a falling out with her best friend and bandmate has killed her dreams of escaping and making it big in the 80s Atlanta punk scene. When Ruby helps her eccentric neighbour organize his religious relics, an ancient ring clamps down on her finger, possessing her with the spirit of a bloodthirsty demon. If Ruby can get her band back together, she has a shot at salvation. It's time for her to face the music and put her whole soul into a song - one powerfull enough to raise some hell.