In an ordinary house in Enfield in the autumn of 1977, 11-year-old Janet appears to be terrorized by paranormal activity that seems to fill every room, though questions linger over what she wants others to believe. As researcher Mr. Grosse becomes determined to protect her from the strange, dark forces around her, a bizarre case unfolds in this three-part dramatization adapted from Guy Lyon Playfair’s This House is Haunted.