Mavis Fox was a young woman who lived in London in the early 1960s. The assets of her wealthy family included several hotels, and she was used to a privileged lifestyle. In 1963, Dennis Tanner stayed at Mavis's house while travelling, but he lied to Mavis that he was from a rich family in Weatherfield. Upon his return home to his terraced house in Coronation Street in April, Dennis was surprised to receive a visit from Mavis. He explained that No.11 was his gran's house and Elsie (in reality his mother) was the cleaner. Mavis felt sorry for Dennis, who she believed had been burdened with looking after his grandmother. When Dennis finally told her that he had lied about his wealth, Mavis returned to London, deciding to end their relationship.