A Relative Stranger

What would it be like to be unsure whether you could recognize your own brother? This is the terrifying quest that Julie Davidge, a young free-lance artist living in London, suddenly and bewildering finds herself confronted with. Her brother Richard, 10 years her senior and always a remote figure to her, has disappeared, presumably kidnapped as a British agent by the enemy. One day a man claiming to be Richard appears in London, and almost simultaneously Julie receives a postcard in Richard's handwriting, saying he is alive in France and needs her help. Is the man in London her brother or is…