After The Blair Witch Project, a generation of zero-budget filmmakers thought that “found footage” meant “find the nearest forest.” Spanish filmmakers Jaume Balagueró and Paco Plaza tore up the rule book when they set their demonic infection flick far from any cabin in the woods and instead had the horror happening in an apartment block. That late-night TV reporter Ángela Vidal (Manuela Velasco) and her cameraman, Pablo (Pablo Rosso), couldn’t blame their plight on being miles from help made the nightmare even more terrifying. – Richard Whittaker