Christopher MacDougall is a common man, struggling to provide for his family in 18th century Scotland. But when a stranger offers him the opportunity to earn more money, unexplainable things begin to happen, and his life is flipped upside down. Soon, he discovers that dark forces are at work, lurking in the shadows and threatening to destroy everyone he cares about. If he wishes to protect those he loves, he must confront, not only what lurks in the shadows, but the darkness inside himself as well.