Note: Fourth (and last) in the P.R.O.B.E. series of spinoff video dramas, about the activities of a Torchwood-esque agency called the "Preternatural Research Bureau". The Doctor Who connection comes from the choice of Whovian actors, particularly Caroline John who is explicitly reprising her role as Liz Shaw from the Pertwee era of the show. Subsequently released on DVD.
The Devil of Winterborne has only recently been exorcised by P.R.O.B.E.
But when the body of its last victim disappears, and a book of black magic spells is stolen from a local museum, Liz Shaw begins to wonder if the ghosts of the past have really been laid to rest.
Forced into an unholy alliance with the school's disgraced headmaster, Liz must fight not only her own warring emotions, but a festering evil that threatens to corrupt the Earth again after 100 years.
But how do you fight a shadow from hell?
Bonus feature: Also included "Stranger Than Fiction" Part Two