Ernesto and Filippo, two high school teachers, couldn’t be more different: Filippo is a cheerful liberal who is constantly online. Handsome and youthful, he is a serial seducer on the social networks. Ernesto, instead is a stern conservative, rigorously computerless. He is probably the last person around who still has a first-generation cell phone and his teaching methods are very traditional. They used to be best friends but an unresolved fight kept them far apart, until the day fate intervened...