讲述有精神病的刺客（朱迪·科默 饰）与英国安全局人员（吴珊卓 饰）这两个聪明女人互相对对方着迷，并进行了一场史诗式的猫捉老鼠游戏。

The Girl Before tells the story of Jane (Gugu Mbatha-Raw), who gets the chance to move into a beautiful, ultra-minimalist house designed by an enigmatic architect (David Oyelowo). There’s just one catch: occupants have to abide by his list of exacting rules. Jane starts to feel the house changing her in unexpected ways, but when she makes the shocking discovery that her predecessor Emma died in the house, she’s forced to confront unnerving similarities. As the two women’s timelines interweave, Jane begins to question if her fate will be the same as the girl before…

暑假前，15岁的米娅和她的父母搬到了齐富的郊区。她早就感到与父母疏远了，当她问她是否会被收养时，她的母亲变得很生气，但是没有回答。虽然米娅陷入了一个野生青少年的存在，试图应付这一切，她的身体开始发生奇怪的变化。首先，很难察觉到，但随后有一种力量把她赶出了头脑。在她的绝望中，她试图用性和毒品来麻痹自己，希望能阻止淹没她的浪潮。但是大自然更强大。

The Girl Before tells the story of Jane (Gugu Mbatha-Raw), who gets the chance to move into a beautiful, ultra-minimalist house designed by an enigmatic architect (David Oyelowo). There’s just one catch occupants have to abide by his list of exacting rules. Jane starts to feel the house changing her in unexpected ways, but when she makes the shocking discovery that her predecessor Emma died in the house, she’s forced to confront unnerving similarities. As the two women’s timelines interweave, Jane begins to question if her fate will be the same as the girl before…