Domestic service worker Lera is accused of a crime. In a cell in the premises of a Civil Guard barracks, she meets Mihaela and Julia, two prostitutes with whom she shares the story of Santa Vicenta María, founder of the Religious of Mary Immaculate, which she says saved her life.
France, beginning of World War II. Hélène Studler is a nun who has been dedicated to the care of orphans and the abandoned people. But the times have changed, the people are living a whole revolt, the Germansoldiers have entered their city and the reality that now faces far exceeds the harshness to which they are accustomed: Hélène discovers that near her locality, the Nazis have installed a concentration camp. Along with some people of the city, several of her Sisters Daughters of Charity plot a whole plan to free the captives from their tragic end.
