El espinazo del diablo

In the last days of the Spanish Civil War, a young boy named Carlos arrives at the Santa Lucía orphanage, where he forms friendships and enemies with the orphanage staff, including Dr. Casares, who operates the orphanage with his friend's widowed wife, Carmen. As Carlos settles in, he begins to experience strange occurrences, including visions of a mysterious entity and encounters with the ghost of a recently deceased boy, Santi. Carlos soon uncovers a dark history of the orphanage, including the murder of a fellow orphan, Santi, by the groundskeeper, Jacinto.