Irina Davydovna is a cleaner. She has no time for politics or even for that matter, people: 'rules and rulers may come and go, but dirt never changes.' Boris Aleksandrovich is a revolutionary. He thinks he understands power. But this is Leningrad in 1933 and Stalin is about to turn against their city. When the life of his beloved daughter Natasha is threatened and his old friend Anton saves a skinny little orphan he finds on a Moscow train, Boris' faith in his ideals are put to the test. While Irina, watching it all, must learn the power of loyalty and love.