Several young couples travel to a private island for a mysterious training retreat that promises to strengthen their relationship. However, during the Retreat, the heroes encounter an ancient demon ...

　　电影根据Ottessa Moshfegh的同名小说改编。故事发生在1964年马萨诸塞州的一个严冬。年轻的艾琳在监狱当秘书，当迷人的咨询师瑞贝卡成为她的新同事，她情不自禁地被对方深深吸引。在瑞贝卡透露了一个黑暗的秘密后，她们的感情发生了变化，将艾琳推上了一条罪恶的道路。...

　　带着一点希望和绝望不已的心情，珍开始踏上找寻超能力的旅程。...