In 1944, during the occupation of Rome, Vittorio De Sica’s movie “La porta del Cielo” was shot. From that moment, a journey begins that comes down to us. The film, or at least the original negatives, made of flammable silver nitrate, disappeared, then a positive copy was found and from there the recovery of this film with its restoration started. Pure Silver tells the story of the production of the movie and the story of its restoration.