Andrea Artusi is a successful businessman with a beautiful wife, Maria, and a happy marriage - until he has an affair. After his own cheating, he starts to become obsessed with his wife's fidelity. Since she is one of the most desired women in town, he worries that it would be very easy for her to cheat on him. Now every time a man looks at his wife, Andrea goes crazy. Meanwhile, Maria finds out about her husband's affair and decides to plan her revenge.
A young woman has doubts about her husband's fidelity. She pretends a trip, but settles in a hotel where her husband must pass. He meets her and, disturbed by the one he believes to be his wife's double, becomes her lover. Little by little the truth breaks through. The husband takes leave of the mistress and returns to the wife whose return has been announced.
Good King Pausole selects a wife for every day in the year, but one protests when he spends her day searching for young Princess Aline who has eloped with Giglio, a visiting airman stranded in the kingdom. Giglio comes from a modern and different world and this gives Queen for a Day some ideas about how to make her title a lasting one.
