It is the love story between a conductor and a singer. The story starts in 1949 when Poland wanted to present a folkloric dancing and singing group in Eastern Europe.
This film is a very good surprise. I watch it by default. It's a black and white movie and it corresponds to the period of the story (1949-1960). Very beautiful pictures in Poland and in Paris: landscapes, faces, music instruments, dancers.
It also explains all the tensions a couple has to face during the Cold War. Who is spying on whom ? Why did they add a hymn to Stalin in a folk concert ?
I recommand.