In an ideal world, they would never have met. Vivien Simpson is a happy housewife with a young son who adores her successful lawyer husband. Edward Davis is an ambitious aide to an important Congressman who loves his wife. When an airplane crash brings about the discovery that their supposedly loving and now deceased spouses were involved in a deeply passionate love affair and possessed the same apartment key, they are devastated and baffled by the revelation. Determined to find the answers to their dilemma, they embark on a search for both the reasons for their spouse's infidelity and their place of assignation. In the process, they discover much about themselves and how the mysterious nature of love can render people too powerless to resist. Another classic love story that has achieved a worldwide audience.