In the mythological Western mining town of Goetia, half-demon/half-Virtue Celeste's life is upended when her younger half-sister is arrrested for the murder of a Virtue. Determined to save her sister and prove her innocence, Celeste turns to her former lover, Abraxas, a former general in the armies of Hell, for help. Soon Celeste is making her own deals with devils and angels alike to prove her sister's innocence. But in a world divided between Fallen and Virtuous, who can be trusted is never clear, and the journey to discover the truth threatens to become more than Celeste bargained for.