When Leonardo da Vinci is commissioned to paint&nbsp;&#39;The Last Supper&#39;&nbsp;, he believes it will seal his reputation as the finest artist in Italy.<br /><br />Yet all does not go as planned. The notorious Papal emissary, Father Rodrigo of Salamanca accuses him of blasphemy over his decision to choose a lowly peasant, Alessandro, to be his model for Jesus.<br /><br />To Leonardo&#39;s horror, Alessandro takes on quasi-religious significance for the populace of Milan, dragging both into a journey of political and religious upheaval, violence and scandal, which eventually leads to their climactic confrontation.