In 2012,the deceased have risen from their graves with only one instinct-to feed on the living. As academics speculate on the scientific cause of the phenomena, theologians point to the Armageddon foretold in the Book of Revelation. As the cities are over run and civilization crumbles, a family take refuge from the undead army in an isolated farmhouse in West Wales. But the greatest threat is already among them.

Sarah Tyler returns to her troubled family home in the isolated countryside, for a much put-off visit. As a storm rages outside, Sarah, her family and friends shore up for the night, cut off from the outside world. But something comes out of the driving rain and darkness. Something that holds a dark secret so devastating that, in one night, it could wipe out the entire family.