Brothers Alex and David Pastor direct this Spanish horror centering around the life of project manager Marc (Quim Gutiérrez). After news breaks revealing that noxious gases are slowly consuming the earth, Marc and his colleagues become trapped in their office; they quickly run out of food and supplies and start to fear the outside world. Three months pass and Marc decides he needs to find his girlfriend, Julia (Marta Etura), and so with the help of his boss Enrique (José Coronado) Marc attempts to search Barcelona until he finds her. What will await him when he opens the door?

Daniel Monzon writes and directs this suspenseful Spanish prison thriller based on a novel by Francisco Perez Gandul. Alberto Ammann stars as trainee prison guard Juan Olivier, who is injured when a prison riot breaks out as he is taking his induction tour of the prison. The uprising, initiated by the charismatic and dangerous Malamadre (Luis Tosar), is a politically-motivated rebellion intended to force negotiations with the authorities over prisoners' rights, and to this end Malamadre takes three Basque terrorists hostage. Caught amidst the ensuing chaos and desperate to protect himself, Juan pretends to be an inmate and ends up becoming Malamadre's right hand man.