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.
特雷西（萝拉·科克 Lola Kirke 饰）是一名平凡的女大学生，落在人群之中毫不起眼。一成不变的生活和日复一日平淡令特雷西的内心备受煎熬，她一直向往着能够前往纽约生活，在她的内心里，纽约这座灯红酒绿的大城市代表着更多的希望和更璀璨的未来。 终于有一天，特雷西的梦想要成真了。她联系上了即将要成为自己同父异母的姐姐的布鲁克（格蕾塔·葛韦格 Greta Gerwig 饰），在特雷西的眼中，布鲁克就是她想要成为的那种女孩。在布鲁克的带领之下，特里希过上了梦寐以求的生活，两人参加聚会，结交朋友，肆意挥洒着青春。然而，随着时间的推移，布鲁克所隐藏的秘密渐渐浮出水面。