Penyffordd Farm, dubbed Britain’s most haunted house, is a seemingly normal-looking farmhouse in north Wales that was the scene of a remarkable series of occurrences in the late 1990s. This unassuming house turned out to be the hub of paranormal activity that enthralled the country. Sian Eleri’s latest television show, Paranormal: The Girl The Ghost and The Gravestones, explores the enigmas surrounding this home during that time.