An Affair in Mind [05/01/88 BBC1]

In this one-off BBC drama, based on Ruth Rendell's novel The Face of Trespass, struggling writer Gray Harston (Stephen Dillane) has an affair with mysterious married woman Druscilla Janus (Amanda Donohoe)... or does he?! Features a scene with Harston quickly detraining at the rarely-seen "Theydon Bois" Central line station.