Halka.

The beautiful highlander Halka falls in love with the rich nobleman Janusz and rejects the adoring highlander Jontek. However, he soon finds out that the lord's love promises cannot be trusted. This is the plot of one of the most famous Polish operas in a nutshell. Konstanty Meglicki's Halka is one of three Polish pre-war adaptations of Stanisław Moniuszko's work.