In 1917 Moscow, the wind of the Bolshevik revolution sweeps through Russian society and establishes a new order. Art does not escape this upheaval and Lenin nationalizes the great private collections, including those of the brothers Mikhaïl and Ivan Morozov. This film tells the story of the fate of this family of flamboyant personalities and that of their collections which, after some incredible events, were divided between the Pushkin Museum in Moscow and the Hermitage in Leningrad. For a long time left to their fate by the Soviet power, the Morozovs are once again today one of the major actors of artistic modernity.