Tulio Carminati, who was previously and felicitously teamed with Grace Moore in One Night of Love, co-stars with another splendid operatic singer, Mary Ellis, in Paris in Spring. Ellis plays Simone, who breaks up her long-standing engagement with Paul de Lille (Carminati) because she balks at the notion of marriage. Simultaneously, young lovers Mignon (Ida Lupino) and Albert (James Blakely) split up for the same reason. In desperation, Mignon heads to the Eiffel Tower, intending to leap to her death. She is dissuaded from doing away with herself by Paul, who'd come to the tower with the same thought in mind. The symbiotic relationship between the two couples is played to the hilt, especially when Mignon and Albert conspire to make Simone and Albert jealous. The distinctly American character actor Lynne Overman is bizarrely but effectively cast as a dry-witted French gendarme.