Act 3
A room in Miller's home
In the distance echoes of the celebration of Rodolfo and Federica's wedding can be heard. Old Miller, freed from prison, comes back home. He enters his house and embraces his daughter, then reads the letter she has prepared for Rodolfo. Luisa is determined to take her own life (La tomba è un letto sparso di fiori / "The grave is a bed strewn with flowers"), but Miller manages to persuade her to stay with him. (Duet: La figlia, vedi, pentita / "Your child, see, repentant"). Alone now, Luisa continues praying. Rodolfo slips in and unseen pours poison into the water jug on the table. He then asks Luisa if she really wrote the letter in which she declared her love for Wurm. "Yes," the girl replies. Rodolfo drinks a glass of water and passes a glass to Luisa, inviting her to drink. Then he tells her that they are both condemned to die. Before she dies, Luisa has time to tell Rodolfo the truth about the letter (Duet: Ah piangi; il tuo dolore / "Weep your sorrow is more justified"). Miller returns and comforts his dying daughter; together the three say their prayers and farewells (Trio, Luisa: Padre, ricevi l'estremo addio / "Father, receive my last farewell"; Rodolfo: Ah! tu perdona il fallo mio / "Oh, forgive my sin"; Miller: O figlia, o vita del cor paterno / "Oh, child, life of your father's heart"). As she dies, peasants enter with Count Walter and Wurm and before he too dies, Rodolfo runs his sword through Wurm's breast declaring to his father La pena tua mira / "Look on your punishment".