Helena Clurey seemed to have all that life could possible offer; Simon, her devoted husband, sufficient money and a loving family in which she could take pride. Happy and secure, Helena believes her only problem to be the unruly, immovable family that lodge on the top floor of their house. But then one evening she gets the shock of her life - her steady, simple life - and her apparent contentment is in danger of being shattered by a dark voice from the past... Mistress she may have been, but that is not the way it is put to her: 'You were not my mistress - You were, and are, my wife.'