A fig tree located in the lands of a baron of the lower Po valley has for many centuries been the subject of worship. The baron, crippled and an atheist, one day sees a girl lying on the fig tree in a benevolent attitude and exchanges for the Saint Who was martyred there in the Middle Ages. Immediately the aristocrat converts and decides to give his belongings to a religious institute. In fact, he was a victim of a cheating and the "santa" is a prostitute who has given up on rage.