In the summer of 85', Josie, a camp counselor, gathers her six closest companions for a final weekend at her family's secluded barn before they part ways for college. However, as buried secrets from her family's past emerge, a malevolent spirit begins to possess each counselor, hell-bent on vengeance. Josie must confront her family's chilling legacy to stop the bloodshed before sunrise—or become the next victim of the Blood Barn.