Set against the turbulent backdrop of Forties London, The Night Watch tells the stories of four young Londoners inextricably linked by their wartime experiences. In a time when the barriers of sexual morality and social convention have been broken down, Kay (Anna Maxwell Martin), Helen (Claire Foy), Viv (Jodie Whittaker) and Duncan (Harry Treadaway) enjoy a freedom never experienced before as they engage in secret liaisons and passionate trysts.The drama opens in 1947 as the country is tryin...