Giuseppe Moscati, Doctor saint of Naples, was a doctor of the early twentieth century, from an aristocratic family devoted his career to serving the poor. The film focuses on the human side, partially leaving aside the spiritual part.

Set on the small island of Porto Buio, the traditional live Christmas Nativity scene might not go ahead because the baby who’s always played Jesus has grown up and no new babies have been born on the island in years! With this fundamental tradition on the line, newly elected Mayor Cecco (Claudio Bisio) wants to ask the local Tunisian community to “borrow” one of their children, but there’s conflict between the two communities. Cecco enlists the help of local Islam convert Bilal (Alessandro Gassman) to cross the cultural divide… but both communities are not sure what to make of a baby Jesus that may need his nationality, and even his religion changed!