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 - a Succubus. This monster feeds on the life energy of people, taking on someone else's appearance and provoking victims to show the worst qualities and do terrible things.

新年的钟声即将敲响，女教师娜斯佳的家中迎来了三位老人，他们都是按照娜斯佳刊登的寻亲启示来这里找失散多年的女儿的。于是，在这个飘着雪花的温馨夜晚，发生了一个动人的故事……