The Outside World takes place in Medell n. There, time is wrapped in a mist, and voices seem like whistles that get lost among tree branches. A castle-like structure stands watch in the overgrown outskirts of the city, and a blond girl runs out the door. Eyes watch, captivated by this unusual presence, and the girl disappears into the forest. It is 1971, and this girl's father, don Diego, has been kidnapped. El Mono is the leader of the crime ring, whose intention is to demand a million-dollar ransom from the family. El Mono has reasons aside from economics to kidnap don Diego: a romantic obsession with the man's daughter, Isolda, a blonde princess whose father, a devotee of Wagner's operas, has kept her locked in the "castle" to preserve her purity and avoid sullying her with the crude outside world that surrounds them.