Directed by Hannu Leminen, Onnaiset (1954) is a romantic drama set in the early 20th century. The film is built around the music of Oskar Merikanto and is an independent sequel to the film Summer Night Waltz. Pianist Lauri Alango (Leif Wager) and his wife Annina (Eeva-Kaarina Volanen) 's fortune is cracked when opera diva Delia Rosati (Maaria Eira) attracts Lauri to accompany her on tour.