Tina, an old lady, is in town for the wedding of her grandson when a medallion left to her by her late husband disappears. Dissatisfied with the police effort to find it, she sets on the tracks of the thieves herself.
Alberto is engaged to Ileana, but whenever he tries to marry her, his grandmother, Tina De Cupis, gets into trouble. She is the widow of a soldier and she is very fond of a medallion with his portrait. So when the medallion vanishes, Tina decides to find it at any cost. The policemen are the first to suffer from her decision.—Baldinotto da Pistoia