After several false starts, opera star Grace Moore became a motion picture success in the sublimely assembled One Night of Love. Moore opens the film by losing a radio talent contest in New York. She disconsolately heads to Europe, where the best job she can come up with is singing in a restaurant. Here she is discovered by brilliant voice-teacher Tulio Carminatti, who carefully nurtures Moore until she becomes the toast of the European opera world. The two fall in love, but jealousy nearly destroys them both. Happily, Moore recovers to the extent of making a triumphant return to the US as reigning diva of the Metropolitan Opera. One Night of Love represents Grace Moore's finest screen work. The film's musical manifest includes such operatic standards as Lucia di Lammermoor, Madame Butterfly and Carmen; the "contemporary" musical lineup was composed by such hands as Louis Silvers (who won an Oscar for his efforts), Victor Schertzinger (who also directed), and Gus Kahn.
by Hal Erickson synopsis