La joven Cristi nunca conoció a su padre. Su madre le confió que se trataba de un aventurero que falleció antes de reconocer su identidad. Cristi conoce y se enamora de un periodista llamado Ángel, que urde un plan para hacer creer que ella es hija de un monarca centroeuropeo.
Peter is a talented young composer who has so far not been able to get his revue “Traumschöne Nacht” in a music theatre. Behind the scenes of the “Alhambra”, a Paris music hall, he meets Violetta, a young up-and-coming artist. For her sake, Mr. Maroni, the director of the “Alhambra”, who is in love with Violetta but is rejected by her, has organized a costume party at which the young entertainer appears as a little flower seller. When Peter shows up there too, he believes that Violette is actually selling flowers.