The machinist of a fishing boat, who has emigrated from Tunisia to Mazara del Vallo, has the possibility of going back home, to Kelibia, to continue the same work he was doing in Italy. He realizes first-hand, however, that there are first-class and second-class citizens. It doesn't matter who you are, but where you come from.
"Kelibia/Ma zara is the result of long, nocturnal discussions about people's origins, and therefore about the phenomena of immigration, economic discrimination and work" (T.B. Abdallah, G. Pannone).