A mother moves into an old family home to undergo a rigorous treatment that she hopes will help her autistic daughter communicate. The therapy seems successful when the girl miraculously begins to speak. However, she soon discovers that her daughter has come into contact with the tortured entities of the place, who return from beyond to collect a dark debt from the past

因被指控杀害弟弟，萨尔瓦多独自生活在巴塔哥尼亚中部。几十年后，他的另一个弟弟马科斯携妻子，说服他出售祖产，分享遗产。随着事情发展，受害者和凶手角色不停地变换。