Doctor Who: The Companion Chronicles: Home Truths

There's a house across the waters at Ely where an old woman tells a strange story. About a kind of night constable called Sara Kingdom. And her friends, the Doctor and Steven. About a journey they made to a young couple's home, and the nightmarish things that were found there. About the follies of youth and selfishness. And the terrible things even the most well-meaning of us can inflict on each other. Hear the old woman's story. Then decide her fate.