密歇根州荷兰镇教师南希·范德格鲁特（妮可·基德曼 饰），她与担任社区领袖的丈夫弗雷德（马修·麦克费登 饰）、儿子哈里过着典型的美国田园生活。当南希与同事戴夫·德尔加多（盖尔·加西亚·贝纳尔 饰）偶然发现丈夫隐藏的秘密后，平静生活迅速崩解。
一群大学时的老朋友在加勒比海潜水之旅中重聚，探索二战战舰的残骸，发现自己被困在由大白鲨包围的生锈金属水下迷宫中。
Spain, late 1980s. Newcomer Sara tries to fit in with the other teens in this tight-knit small town in the province of Tarrgona. If only she were more like her extroverted best friend, Rebe. They go out one night at a nightclub, on the way home, they come upon a little girl holding a doll, dressed for her first communion. And that's when the nightmare begins.
