On Halloween night, three teenagers pay a visit to the old woman who lives alone in her ramshackle little house in the woods with dozens of cats. The trio had planned on an All Hallows Eve prank before heading to a party. The town of Summerdale has a dark past and Josie Howard knows the true story of Mister Jack. And when she's done telling her chilling tale of blood and madness, their lives will be forever changed.