In a secondary school, a group of students, Mary, Sonia, Paula, Pol and Esteban-form a tightly knit gang. The arrival of Axia, a girl with special sensitivity to the supernatural themes, are fascinated and included in the group. To mark the 50th anniversary of the Institute begin a work on improving facilities and the course tutor, Laura, offers a paper on its history. They begin to gather information and find that, during the Civil War, some of the tunnels collapsed, burying those who were hiding in them. Several children were buried and, according to some articles found on the Internet, people are buried "appear" in places where they died. These are called "ESO - Supernatural Entity Hide." When they enter the tunnel ... the adventure becomes a nightmare.
Written and directed by Santiago Lapeira. Country: Spain. Year: 2009. Length: 84 min. Genre: Fantasy, suspense. Interpretation: Cadhla Kennedy, Oriol Puig, Paula Jimenez, Clara Lapeira, David Maestre, Natalia Pedra, Mercé Llorens, Sergi Mateu, Rosana Pastor, Fernando Guillén. Producer: Mamen Boué, Jorge Daura, Jaime Comas, Jose Luis Berlanga and Rodriguez. Photo: David Valldepérez. Mounting: Marc Dominici. Art Director: Mireia Carles.