The Mistress is a BBC sitcom following the ups and downs of an extra-marital affair. Maxine is a carefree young woman, always looking on the bright side of things. She runs a successful florist s shop. She s also having an affair with married man, Luke. Although their relationship is illicit and Maxine is occasionally troubled by guilt and insecurity, she is reluctant to end it. Hovering between them is Luke s wife, Helen, who remains blissfully oblivious to her husband s extramarital activities...