The Stone Tape by Nigel Kneale (Audio Remake of 1972 TV Horror Show)

The Stone Tape is a 1972 British television horror drama film written by Nigel Kneale and directed by Peter Sasdy and starring Michael Bryant, Jane Asher, Michael Bates and Iain Cuthbertson.

It was broadcast on BBC Two as a Christmas ghost story in 1972. Combining aspects of science fiction and horror, the story concerns a team of scientists who move into their new research facility, a renovated Victorian mansion that has a reputation for being haunted.

The team investigate the phenomenon, trying to determine if the stones of the building are acting as a recording medium for past events (the "stone tape" of the play's title). However, their investigations serve only to unleash a darker, more malevolent force.

The Stone Tape was written by Nigel Kneale, best known as the writer of Quatermass. Its juxtaposition of science and superstition is a frequent theme in Kneale's work; in particular, his 1952 radio play You Must Listen, about a haunted telephone line, is a notable antecedent of The Stone Tape. The play was also inspired by a visit Kneale had paid to the BBC's research and development department, which was then located in an old Victorian house in Kingswood, Surrey.

Critically acclaimed at time of broadcast, it remains well regarded to this day as one of Nigel Kneale's best and most terrifying plays. Since its broadcast, the hypothesis of residual haunting – that ghosts are recordings of past events made by the natural environment – has come to be known as the "Stone Tape Theory".

Plot
Peter Brock is the selfish and petulant head of a research team for Ryan Electric Products. His team are developing a new recording medium that will give the company an edge over its Japanese competitors.

They move into a new facility at Taskerlands, an old Victorian mansion renovated for their use. On arrival, they learn from estates manager Roy Collinson that the refurbishment of one of the rooms in Taskerlands remains incomplete. The builders refused to work in it because it is supposedly haunted.

The room, with its stone walls, is a remnant of the original building, with foundations dating back to the Saxon era. The rest of the mansion was added over the centuries.