Romolo (Maurizio Arena) and Salvatore (Renato Salvatori) are two young men that are neighbors and friends. They live with their parents in Piazza Navona in Rome. They are poor but handsome, and both fall in love with the beautiful Giovanna (Marisa Allasio).
After having briefly flirted in quick succession with both friends (a situation which severely strains their feelings of comradeship), Giovanna realizes she's still in love with Ugo, her previous boyfriend, and returns with him. Romolo and Salvatore, their friendship recovered, ultimately get simultaneously engaged with each other's sister.