*Saint Catherine* (2024) is a supernatural horror film set in a secluded convent with a dark history. When Sister Anna arrives as a new initiate, she begins experiencing strange visions of Saint Catherine, the patron saint of the convent. At first, the apparitions seem divine, but they soon take a sinister turn as unexplained deaths and eerie occurrences plague the convent. Anna uncovers a horrifying secret: the convent is built on the site of a centuries-old massacre, and the spirits of the vengeful dead have taken the form of Saint Catherine to enact their revenge. As the line between faith and fear blurs, Anna must confront her own beliefs and uncover the truth behind the haunting. *Saint Catherine* blends psychological tension with chilling religious horror, exploring themes of guilt, sacrifice, and the dangers of blind devotion.