The Living and the Dead (BBC1, 9pm)

An engineer is spooked by a gruesome apparition on Hallowe’en, and when he and his colleagues flee, the railway company suspends work. Residents pass it off as nervousness on the part of city-folk unaccustomed to rural life, but when the hauntings start to take a lethal bent, they concede there is “something wrong”. Blame turns to the Applebys, whose return co-incided with the supernatural influx, and as an increasingly unhinged Nathan draws the impressionable Harriet Denning back into his experiments, he earns the ire of his own wife, and Harriet’s father.