South America, 1990. Ben Ronson, a British police officer, arrives in a mysterious forest to investigate a spate of killings of Duendes. These silent, vaguely humanoid creatures with long limbs and black button eyes have a strange psychic effect on people, unleashing the subconscious and exposing their innermost thoughts and fears. Ben becomes fascinated by the Duendes, but the closer he gets, the more he begins to unravel, with terrifying results...