交换朋友的妻子

大学二年级学生玛丽亚有机会与已故的父亲团聚，于是她加入了路易斯领导的超自然学术小组。然而，他们的科学冒险却发现了一个古老的仪式，而这个团体注定要参与其中。

　　2056 - Company soldier Hannah and scientists Gavin and Dimitri are on board of RUBIKON space station researching an algae project aimed to provide humanity with a permanent supply of oxygen and food. But all of a sudden the earth beneath them disappears in a brown, toxic fog and all contacts are broken - are they the last survivors? Should they leave the safe station, risk their lives by flying back? What is worth living for, what is worth dying for?

　　The film tells the story of how, in post-war Spain, Narcisa (played by Aria Bedmar), a novice with supernatural powers, arrives at a former convent, now a school for girls, to become a teacher. As the days go by, the strange events and increasingly disturbing situations that torment her will eventually lead her to uncover the terrible web of secrets that surround the convent and haunt its inhabitants.