跟随格雷斯一家，他们搬进了祖居，揭开了关于他们的曾叔祖父的黑暗秘密，他发现了与他们平行的秘密精灵世界。

A group of college friends rent an Airbnb for the biggest music festival of the year. A weekend of partying quickly takes a turn, as the group is murdered one by one.