The TV series focuses around the lives of the Martini family. They live in Rome. Lele Martini is a doctor and a widower with three children: Maria, Francesco "Ciccio" and Anna "Annuccia". He falls in love with his sister-in-law, Alice Solari. At the end of the second season, they get married and have two twins. Lele hires Cettina as their "au pair". Cettina is a Neapolitan woman (she comes from Mondragone) who pretends to be Polish in order to be hired. Eventually the Martinis find out that Cettina is actually Italian, but they do not fire her. At the beginning of the third season Lele, Alice and their twins leave Italy in order to live in Australia. Lele puts his children in the hands of their grandpa, Nonno Libero. Cettina falls in love with Torello, a funeral director. They get married at the end of the third season. Maria falls in love with Guido, a doctor. They get married at the end of the fourth season.