A 17th century woman with her eyes and mouth sewn-shut walks Blacks Springs streets... enters its homes... and watches its people while they sleep. They call her the Black Rock Witch. So accustomed to her presence, the townsfolk often forget what will happen if her eyes ever open.

To protect themselves the Black Spring elders use high-tech surveillance to quarantine the town. Frustrated with the lockdown, the town's teenagers decide to break the rules and go viral with the haunting. But no one foresees the dark nightmare that awaits them all.