The series follows the wavering relationship between two ex-lovers, Penny Warrender, a secretary for an advertising firm, and Vincent Pinner, an ex-ice cream salesman turned bookmaker who is the son of a wealthy scrap metal merchant. The couple (who first met in the summer of 1976 at a Rolling Stones concert in Hyde Park) split up following Vincent's decision to jilt Penny on their wedding day in June 1978, leaving her at the altar. In the pilot episode, five years since their intended wedding day, the pair meet again by chance in a pub while out on individual dates. The pair decide to forget the past and become friends, although the rekindling of their relationship is not welcomed by Penny's snobbish parents, particularly her mother, Daphne, played by Sylvia Kay.