Sarah Williams was leaving her husband. The car accident only made the separation permanent. A mix up at the hospital, a misplaced donor card, and an urgent heart transplant goes ahead. But was the right donor used? Alex Williams had found out about his wife's affair with their American lawyer, Robert McCord. It had been a terrible argument. Sarah had stormed out and driven away. It was the last time Alex saw her alive, and his anger is soon matched by his grief. Anger, grief and a terrible outrage. Rachel Carter is young, romantic and has heart disease. For her, the heart transplant is the only answer. But the success of the transplant is only the beginning of her troubles. No sooner is she recovering when Alex sues the hospital for carrying out the transplant without permission. But not only does he want compensation, he wants his wife's heart back. Why does Robert McCord volunteer to fight Rachel's court case against Alex? Is it just old rivalry, or are they still fighting for the heart of the woman they both once loved? And why does Rachel think she can feel Sarah's emotions in the heart that now beats in her own chest? Why does she feel that this dead woman still has something urgent to do? What is the secret that Alex kept from Sarah, the secret that finally broke their marriage? And what has Alex's daughter, Diana, go to do with any of this?