"The Story of the Lost Child" completes the "Neapolitan Novels," the story of the friendship between two girls from Naples, Lila and Elena. Elena, now an acclaimed author, returns to the city of her childhood and adolescence after her separation, chasing her youthful love who has reappeared in her life. Lila, who never left Naples, excels in the field of information technology and comes into conflict with the powerful Solara brothers. Lila and Elena, two sides of the same coin, clash, reunite, and discover new aspects of their personalities and their friendship, against the backdrop of the history of Italy and the entire world.