Prelude to Madness or Loveless Lovers (Italian: Amanti senza amore) is a 1948 Italian drama film directed by Gianni Franciolini and starring Clara Calamai, Roldano Lupi and Jean Servais. It is inspired by the 1889 novella The Kreutzer Sonata by Leo Tolstoy. The film's sets were designed by the art director Piero Gherardi. Location shooting took place in Orvieto and San Remo. It earned around 55 million lira at the box office.