Charleston, South Carolina is an elusive city with many faces and the perfect home for Maria Abascal (Mena Suvari), a stunning, 30-year-old demon-hunter-for-hire. Alongside her brother, David (Zachary Booth), she is skilled and fearless in her pursuit of the demons that live in others. Like those that she hunts, Maria is divided within herself, struggling with her own demon, Abigail, who resides inside of her, feeding on the evil Maria exorcises from others. Maria and Abigail share a soul and a destiny, but as Maria desperately tries to overtake Abigail, she will discover how far Abigail will go to remain a part of her.
In this first episode, A possessed exorcist and her troubled brother are forced into a dangerous alliance with a mysterious priest in order to defeat their own father, who has escaped from Hell with an army of demons at his command.