[Rec]

Reporter Ángela Vidal and her cameraman Pablo are covering the night shift in one of Barcelona's local fire stations for the television series While You're Sleeping. While they are recording, the firehouse receives a call about an old woman, Mrs. Izquierdo, who is trapped in her apartment and screaming. Ángela and Pablo accompany two of the firefighters, Álex and Manu, to the apartment building on Rambla de Catalunya, where two police officers are waiting. As they approach, the old woman becomes aggressive and attacks one of the officers, biting his neck. As they carry the injured officer downstairs, they find the building residents gathered in the lobby. The police and military have sealed off the building and trapped them inside.