The Haunting of Radcliffe House

The Hamilton family have moved to Radcliffe House, a remote estate. Upon arrival, Donnelly, one of the builders, gives a tour of the premises. They find a room with an intricate mosaic on the floor, Donnelly states that the previous owner, a man named Radcliffe, murdered his wife in a demonic ritual involving the mosaic. Rumour has it that they now haunt the estate.