Coincidentally, two of this week’s big new dramas began with a fourth wall-busting declaration of their narrative methods. At the start of Towards Zero, BBC1’s latest Agatha Christie adaptation, a man we later discovered to be a lawyer addressed the camera. ‘I like a good detective story,’ he told us. ‘But they begin in the wrong place. They begin with the murder’ – which should instead ‘come at the end of a........

© The Spectator