The story takes place in the 1950s. Konstantin “Kostik” Romin (Oleg Menshikov) has come to Moscow to study history and is staying with kindly aunt Alisa (Sofya Pilyavskaya), who lives in a "Kommunalka" building there. His life soon becomes intertwined with those of the other residents. Among them are Margarita Pavlovna (Inna Ulyanova) and both her former husband Lev Khobotov (Anatoly Ravikovich), a publisher of foreign poetry, and her new beau, World War II veteran and engraver-turned-teacher Savva Ignatevich (Viktor Bortsov).