en Cuevana 3. Anna-Lisa, the daughter of the Sandkulla estate, hires a man she believes to be a vagrant, Mr. Hirninen, as an extra guest for her engagement party. In reality, he is the son of Jussi, the sawmill owner, who falls in love with Anna-Lisa at the party. However, misunderstandings and the manor's financial problems make it difficult for the couple to be together.