Profiler Jack Nelson witnessed his sister being taken by the Willowman when he was a child. He believes it was his imagination, influenced by the local boogeyman stories, but he still has nightmares about it. He has gone back to his hometown to find the real person who has been killing local children. But when his son sees the Willowman, he realizes he is up against something supernatural and more sinister than a serial killer. How can he save his son when he himself is afraid of the Willowman.