Another excellent example is The Stone Tape, a Christmas ghost story from 1972 and Kneale’s last major original work for the BBC. Like Quatermass and the Pit before it (which suggested that poltergeist activity could be explained by the psychic abilities left to us by the Martians), The Stone Tape combined science fiction with the supernatural. The television play revolves around a group of scientists who move into a new research facility: an allegedly haunted Victorian mansion. Curious, they investigate the alleged ghost but soon determine that it is really just some kind of recording of a past event somehow stored by stone in one of the rooms (the stone tape of the title). Believing that this discovery may lead to the development of a whole new recording medium, which they were originally brought together to find in the first place, they throw all their knowledge and high tech equipment into trying to find a means of playing back the stone tape recording at will. However, their investigations only serve to unleash a far older and more malevolent force, with tragic consequences. Of course, The Stone Tape is where “the stone tape theory” familiar to many paranormal researchers today originates.
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