Cetto La Qualunque, after his experiences in politics, has rebuilt a life in Germany, where he has lived for four years with the beautiful Petra, his new wife, their daughter and his loyal friend Pino.

One evening, returning from a dinner with his in-laws, he receives a phone call informing him that his elderly aunt is on her deathbed: upon returning to his birth town Cetto is informed by the latter of his true origins, as the woman reveals to him that his father was not a door-to-door agent of detergents as they had always told him but the prince Buffo di Calabria and that therefore he too is of royal blood.

Cetto is also forced to leave Petra to marry, according to Venanzio's instructions, the Infanta of Portugal, in order to make his reign more solid.

Having also obtained the support of the Church in the person of a powerful cardinal, the wedding between Cetto and the Infanta is celebrated, even if Cetto didn't even bother to know her because of her ugliness, preferring by far the frequentation of many escorts such as his usual, and everything seems ready to start the referendum to ask Italians for the maintenance of the republic or the reinstating of the monarchy.

The electoral campaign is organized by Melo, after he was forced to abandon the career as mayor, after he is investigated again as a figurehead for his father, this time in Germany.