After hearing unusual noises at their house in Baker Street, the Doctor and Romana head into the Kent countryside… and encounter some even stranger phenomena…

Phil Mulryne’s ghostly tale comes hot on the heels of the Twelfth Doctor’s encounter with David Suchet’s Landlord in Knock, Knock, and like that, benefits from some binaural sound mixing that can best be appreciated using headphones. Tom Baker and Lalla Ward get their teeth into a script that challenges their characters’ beliefs, and there’s a particularly brilliant scene where the pair are theorising over each other.

Hitchhikers’ Guide to the Galaxy’s Simon Jones is the main guest star, as a spiritualist who’s really out of his depth (and there’s a brief homage to his HHGG days in the second episode) – his final scene with Denise Black’s housekeeper Mrs Mountford will bring a wry smile to your face. Gunnar Cauthery, fresh from his stint on The Omega Factor, plays a shellshocked young soldier returned from the First World War, with Fiona Sheehan as his twin sister, neither of whom want to face the truth about what’s going on. Both roles could easily have been dialled up but director Nick Briggs keeps things reined in for much of the time so that when it’s appropriate, the level can rise.

Jamie Robertson’s sound design deserves much credit for the creation of the atmosphere, and there are moments when you don’t need one of the characters to say what’s just happened, as the design sells it completely.

Verdict: A spooky tale that cries out to be relistened to at Halloween. 8/10

Paul Simpson