The story revolves around Samantha, a thirty year old housewife who, by her own design, leads an extremely regimented life. She steadfastly rufuses to socialise away from the home, and only allows her husband to have sex once each week. Not surprisingly, the husband eventually confides in his secretary, and they indulge in occasional sex after hours in the office.
When the company's annual conference is announced, and for the first time, both the wife and secretary of each manager are invited, Samantha is reluctantly persuaded to attend. During the three night stay at the conference hotel, she experiences both passively and actively, a variety of erotic experiences which determine that her life will never be the same again.
She is left in confusion when she unwittingly stumbles across a threesome in a woodland glade. An assignation with the company's Managing Director leaves her cold. And witnessing her husband's secretary being ravished after falling into the hotel swimming pool are just a few of the many and varied encounters that she has to deal with.
On the way home she learns of her husband's past infidelity, and determines to show that the long weekend's many and varied experiences will only serve to make their marriage more complete.