Werther  by Jules Massenet

The tender way Charlotte cares for her younger siblings after her mother’s death evokes Werther’s love, despite knowing she has a fiancé, Albert, who is currently away from home. At a ball, Charlotte and Werther are captivated by one another, but their romantic illusion is shattered when they hear Albert has returned.
Charlotte and Albert have been married for three years; Werther, deeply depressed, cannot hide his love. Charlotte tells him he must go away until Christmas. He leaves in despair, contemplating suicide.
On Christmas Eve, Charlotte reads all Werther’s letters, realising she does love him. Werther suddenly appears and they share tender memories, but Charlotte then flees. Albert reads her a letter from Werther asking to borrow his pistols before leaving on a journey. Charlotte guesses Werther’s intention and runs to his rooms, where he lies mortally wounded. She admits she has always loved him and he dies in her arms, happy to know her true feelings.