Since the last series of Never a Cross Word, Ronald Baldock has gravitated from semi-detached suburbia to a new job and a new house. He is now in the advertising business and he and his wile Deirdre are living in Chelsea. Deirdre, with a part-time post at an art gallery, finds running her new home difficult, to say the least. The Baldocks decide to borrow a friend's au pair girl to help them out of trouble. But solving one problem creates another.