خلاصه داستان : زندگی آرام خانواده ای که از بقیه جامعه جدا شده اند توسط موجودی ترسناک آشفته می شود و پیوندهایی را که آنها را به هم پیوند می دهد آزمایش می کند.

Lucía and her son live isolated from society in a flat place where there’s practically no life. The small family unit formed by mother and son hardly ever receives visitors, and their goal is to lead a quiet existence. At first they succeed, but the appearance of a mysterious, violent creature that starts stalking their small house will put the relationship that unites them to the test.