In the aftermath of a devastating accident, Rachel and her husband Anthony decide to relocate to the other side of the world to focus on their surviving twin boy, Elliot. This is just the beginning of Rachel's suffering. What begins as a time of healing and isolation in the Finnish countryside transforms into a desperate battle for the soul of their son when an entity claiming to be his dead twin brother takes control of Elliot, sending Rachel on a diabolical journey to discover the horrifying truth about her twin son.