This film is a reconstruction of the possible events that might have led up to the real-life tragic case of the Luxton family who lived at West Chapple Farm, Winkleigh, Devon. Brothers and sister Robert, Alan and Frances Luxton had lived in the farm for many years. On 23 September 1975 their bodies were found with shotgun wounds outside their farmhouse. Had one of the brothers killed the other two and then himself?