In 1957, a French student Pierre Duran arrives in Moscow for an internship at Moscow State University. He is immersed in the cultural life of Moscow, not only official, but also underground. For a year, Pierre has lived in Moscow for a lifetime, completely unlike everything he knew. But internship and acquaintance with different aspects of the life of Soviet people is not Pierre's only goal. He is looking for his father, a white officer Tatishchev, who was arrested in the late 30s.