Eva Delectorskaya, a beautiful Russian ?migr?e living in Paris, is recruited for the British Secret Service by the mysterious Lucas Romer. Under his tutelage she becomes the perfect spy - trusting no one, even those she loves most. Since the close of the Second World War, Eva has carefully rebuilt her life as a typical English wife. But once a spy, always a spy. Now she must complete one final assignment, and this time Eva can't do it alone: she needs her daughter's help.