Amhurst (2008)

The supernatural thriller Amhurst begins when a ten year old girl disappears. The girl's twin sister has always suspected that their grandfather Meryl may have been responsible. Years later, Meryl passes away and the surviving twin returns to the grandparents' house with her own children in tow. Many strange events come to pass in the house and in the town, and the living twin is haunted by vivid nightmares. Soon everyone has to unravel the truth before it's too late.