 Mario Valli has a good voice, he is a widow and has a daughter, Paoletta, whom he loves very much. He lives by singing in petty night-clubs. A day arrives when he has his chance: a contract in Madrid. But in Madrid, with his friend Silvio, he finds out that the producer has gone bankrupt. Mario is discouraged and after another producer, Linares, doesn t meet him, the two friends go to see a bullfight. There Mario meets by chance Consuelo who refuses to tell him her surname. When Mario finds out that the surname is Linares, he goes back to Rome, but...