Rosanna is only eleven years old when she meets Roberto Rossini, an aspiring opera singer who will change her life forever. When he heard her surprisingly beautiful voice, he encouraged her to pursue singing. With the support of her brother, she embarks on a journey that will take her from humble beginnings in the back streets of Naples to the glittering stages of the world's most prestigious opera houses. A few years later, their lives intersect again. Despite the differences in age and status, the two natives of Naples fall passionately in love.
However, Rosanna soon discovers that she does not know everything about Robert's past, and the dark shadows of old mistakes inevitably cloud their relationship. At first it seems that the consuming passion and shared love for music will overcome everything, but Rosanna is in for a bitter realization that betrayal and disappointment are not just the motifs of famous librettos and life is far from a romantic aria...