Unknown Person

For more than a decade, parents Andy and Vicky have been on the run, desperate to hide their daughter Charlie from a shadowy federal agency that wants to harness her unprecedented gift for creating fire into a weapon of mass destruction. Andy has taught Charlie how to defuse her power, which is triggered by anger or pain. But as Charlie turns 11, the fire becomes harder and harder to control. After an incident reveals the family's location, a mysterious operative is deployed to hunt down the family and seize Charlie once and for all. Charlie has other plans.

Belle, her little sister, and her comatose twin brother move into a new house with their single mother in order to save money to help pay for her brother's expensive healthcare. But when strange phenomena begin to occur including the miraculous recovery of her brother, Belle begins to suspect her mother isn't telling her everything and soon learns they moved into the infamous Amityville house.