E.S.O (Entitat Sobrenatural Oculta)

Set in a secondary school, E.S.O follows a group of students who become intrigued by their classmate Axia's obsession with the supernatural. As part of their school's 50th anniversary, they undertake a project to explore the institution's history. Their investigation reveals a chilling connection to the past, involving hidden tunnels from the Civil War and the spirits of those who perished there.

The film's runtime is 84 minutes, packing suspense and terror into a compact narrative. E.S.O combines elements of horror with a historical backdrop, making it a unique entry in the genre. The film features a cast that includes Fernando Guillén, Fon Herrera, and Mercè Llorens, adding depth to the chilling story.