Policarpo De Tappetti is a calligrapher who works under the orders of Don César Pancarano de Rondò. For many years, Policarpo has been seeking a promotion and a raise that never comes, and, it seems, will never come. One day, Jerónimo, the son of Don César, meets Celeste, the daughter of Policarpo, and falls in love with her. Policarpo sees in that relationship the solution to his aspirations at work, and does everything in his power to make this relationship fruitful. Don César, who presumes to be a count, sees with very bad eyes that his son meets a girl from such a different social position, and does just the opposite. But the efforts made by both parties will be of no use, since Celeste has fallen in love with Mario Marquetti, a "specialized mechanic" (typist) who is giving private lessons in the offices of the businessman Franquinet .
Giovanni peddles useless pens in the streets of Rome with his sidekick Francesco, but his college-student daughter thinks he is a rich industrialist. She falls in love with a rich guy and when her father tells her the trust about their financial situation she drops her fiance and refuses food. Luckily, the guy's parents give their consent to the marriage anyway.
A bizarre mechanic tells a traveler the story of a bank employee, Peppino Biancaneve, who with the help of a disc is trying to put together the words he would like to use to ask for the hand of the daughter of the jeweler Carlo Casertoni, but while he mulls over the sentences he should pronounce to his future father-in-law he comes across a strange individual who could be a bringer of bad luck: a jettatore.