The story is set at the beginning of the 20th century in Sicily. Salvatore, a very poor farmer, and a widower, decides to emigrate to the US with all his family, including his old mother. Before they embark, they meet Lucy. She is supposed to be a British lady and wants to come back to the States. Lucy, or Luce as Salvatore calls her, for unknown reasons wants to marry someone before to arrive to Ellis Island in New York. Salvatore accepts the proposal. Once they arrive in Ellis Island they spend the quarantine period trying to pass the examinations to be admitted to the States. Tests are not so simple for poor farmers coming from Sicily. Their destiny is in the hands of the custom officers.

Matrimony is a drama about the complexity of relationships. On Christmas Eve, perfect housewife Giulia Francesca Neri is worried about a family heirloom which has cracked and rushes to the junk shop to get it repaired -- little anticipating her perfect marriage is about to fall to pieces as well. While everyone in Bologna is making last minute preparations, Giulia runs into her childhood sweetheart, Fausto Paolo Sassanelli. The meeting rekindles old feelings and Giulia realizes that to create the perfect marriage which everyone adores, she has sacrificed her own personality. While waiting to meet her parents at the station, she climbs into a departing train and disappears. The family slowly disintegrates, as if she were the binding element.