Colpi di Fulmine is a film that deals with the theme of love at first sight. In the first part a psychiatrist (Christian De Sica) ends up in the cross-hair of the revenue authorities. He is innocent, but He is afraid to go to jail before he could make his point, so he disguises himself as a priest and takes refuge in a small village in Trentino, where he pretends to be the new pastor of the small community. Although fasting for religious practices, thanks to its experience can empathize with the parishioners. The situation becomes complicated when he falls in love at first sight with a beautiful woman (Luisa Ranieri). For both it is a shameful love: for her because she believes him to be a true priest, for him because he knows he's a fake priest. These are the premise for a series of comic situations that will lead to a surprise ending. The second part of the film takes place in Rome, starring the Italian Ambassador to the Holy See (Greg). The diplomat, as he wants his role, is polished in speech and has impeccable manners. But, by the law of retaliation, falls for a fishmonger (Anna Foglietta) who speaks only in Roman and adopts the coarse modes of a commoner. She hates the formalisms, so, to get to its height, the ambassador decides to become a real boor with the help of your driver (Lillo). The staging is always running on the edge. The ambassador and his driver will have to jump through hoops to resolve the impossible situation ....