In the late 1960s two brothers, Tom and Tim Yancey, encounter a demonic entity in the woods surrounding their home in Lake Worth, Florida. For sometime, they try to ignore their experience of what they labeled as "the shadowman" and get on their summer. Tim wakes up one night to see the shadowman lurking outside the window. He wakes up on a few occasions to find his brother sleep walk. Their mother, Barbara, eventually suspects the house is haunted and tries, but fails, to call out the entity using a Ouija board. Eventually, an incident lands Tim in the hospital. Years later, Tim becomes a paranormal investigator. After many years of not seeing each other, the brothers finally come together after Tim buys the old house to settle unfinished business and get rid of the demon that haunts it.