L’isola delle lepri Margit of Hungary is still in the womb when she is devoted to God. She is nun by force, she takes on all suffering and deprivation in order to be pleasing to the Most High. She refuses the marriage proposal of the handsome King of Bohemia Ottokar, she makes peace between her beloved brother Stephen and her father. In reality, her sad soul is prey to a fierce nostalgia and violent grudges, her heart is torn by the desire for a life outside the dark walls of the convent. Next to her, Marcello, the provincial father of the Dominicans, burned by a secret passion, and Kalima, her faithful dog. It is the story of a singular woman, of a young wasted life, of a powerful, tormented soul, capable of immense love, passion and loneliness.