Petrograd, Soviet Union, 1920s. Boris Letush, devastated by a personal tragedy, feels the need to put his conscience and his principles before the demands of the cruel system he serves, where law and justice are systematically ignored.

A movie about a married couple of elderly intellectuals from St. Petersburg. About their wisdom, calmness, optimism, patience and forgiveness. That is, about everything that contemporary people lack. That is why they themselves, their warmth and their house attract those in need of warmth, help and support like fire.