Acclaimed documentary filmmaker Erica Shaw is hired by Alyssa Bradford-Cohen to create a portrait of her dying father-in-law, the enigmatic millionaire Campbell Bradford. Erica receives a substantial sum of money and a relic, an antique bottle filled with water from a local spring, one of the few clues connecting Bradford to the city he once ruled. Erica begins to drink from the ancient bottle and has terrifying visions and unleashes an unspeakable evil. Can Erica make it through the darkness or is Campbell's evil power too strong?