Razzullo is a scrivener hired by the Emperor Augusto to take a census of all the Empire citizens, who is keeping on looking for stratagems which allow him to satisfy his hunger. On his way he runs into Sarchiapone, his looney countryman, barber and violin scraper, on the run because he has cheated a gangster. They handle together many vicissitudes in order to earn some money to buy something to eat. In the meanwhile, Mary and Joseph are travelling looking for a place in which waiting for Baby Jesus' birth, pursued by Plutone, Lord of underworld, and the four little devils in his service.