 The episode investigates how common affairs at work are, and the complications they create. It also tells the story of a couple who met because their respective partners had an affair with each other - a happy ending caused by unhappy circumstances. The questions are asked why people have affairs, and how do you find someone to have an affair with, and one man introduces his rather unusual business idea, namely an online dating agency for married people. The historic mistress presented in this episode is Nell Gwynne, who was Charles II s only protestant mistress (the rest were all good catholics).