The summer of '47. In the sleepy town of Villiers-la-Foret, roughly an hour from Paris, the peaceful radiance of the day is interrupted by the discovery that, along a nearby riverbank, the body of a man has washed up, a gaping wound in his skull. Beside him rests a beautiful, nearly bare-breasted woman, her dress soaked and in tatters. An accident or foul play? A crime of passion? Soon there are almost as many speculations and theories as there are townspeople. The woman, it turns out, is a Russian princess, Olga Arbyelina, a refugee from the Bolshevik revolution who in the 1930s had settled in town along with many of her compatriots. Rumor was that Olga's husband, a dashing prince given to gambling and revels, had deserted her some years after the couple's arrival in France, leaving her alone to care for their young son. About the victim, also a Russian refugee, little is known: many years Olga's elder, he was a taciturn, rather coarse, slightly ridiculous man name Sergei...