After fleeing an abusive religious cult, a mysterious young woman teams up with a mandolin-playing drifter who believes himself to be the devil, as they seek to navigate the underworld of the American Mother Road in search of a place to call home. The lines of belief, delusion, and religion are blurred—as are the definitions of good and evil—as a new, disturbing power emerges in this young vagrant woman who has nowhere to call home and nothing to lose.