All the Fine Promises

After the death of her mother Marianne, a young cellist discovers that her father had a mistress. In order to find her, she casts aside her boyfriend Etienne. The mistress is a pianist named Beatrice. Beatrice and Marianne strike up a friendship while reminiscing about the past. They remember Edith Piaf's song : "Hymne a l'amour" and Marianne reconnects with her nanny Ghislaine who was a funny companion when she was young.