Documentary filmmakers Thierry Demaizière and Alban Teurlai venture to the Grotto of Lourdes in Lourdes, France, to explore the religious and spiritual significance of the rock to Catholic worshippers around the world. Countless devotees have visited the cave to touch the stone and experience a miraculous event, whether physical healing, the fulfillment of their goals, or renewal in their faith. For those who believe, Lourdes is a place that protects human vulnerability and invites miracles.