Les Martyrs aussi iront en enfer (1970)

Born with a facial deformity, 16-year-old Eugénie faces harassment from her classmates, most of all Sam, and only finds comfort in her faith. One day, Sam gets particularly brutal with her, and she is rescued by Father Mathieu, the new priest of the town's church. Father Mathieu immediately sees in her what could be a modern Martyr and wants to teach her the ways to sanctity. Made saint, Eugénie sees her confidence rising, and even Sam cannot help but notice it...