Molly Keatley is deeply contented with her life, her loving husband, her comfortable home in an attractive London suburb. Things are so pleasant, in fact, that they're ever so slightly boring, but that changes abruptly one bright September morning, when her husband comes rushing home, mutters a hasty, unexplained apology . . . and disappears. Minutes later, two strange men arrive with news that her husband is in fact a Soviet spy, and that the sleepy joys of her marriage have acted as a cover for years of personal and public betrayal.