It is 1922, and London is tense. Ex-servicemen are disillusioned, the out-of-work and the hungry are demanding change. And in South London, in a genteel Camberwell villa, a large silent house now bereft of brothers, husband and even servants, life is about to be transformed, as impoverished widow Mrs Wray and her spinster daughter, Frances, are obliged to take in lodgers. For with the arrival of Lilian and Leonard Barber, a modern young couple of the 'clerk class', the routines of the house will be shaken up in unexpected ways.