On the Roofs at Night (1988)

Sinopsis

Two girls with the same name—Nadezhda [Hope]—live in the same apartment. Great Nadezhda is isolated from other people. She has no other aspirations than to marry a man much older than her. Over time, she will realize that this is her father, whom her mother is hiding. A small Nadezhda is the complete opposite of a great Nadezhda. She lives for others. Take care of Grandpa. She opposes rudeness and meanness. Gradually, the two girls change places. They become two parts of one whole.