When a city is terrorized by a sadistic serial killer, a seasoned detective and a newly recruited paramedic discover the key to stopping the bloodshed lies in unlocking the truth of their own haunted pasts.
爱丽斯(凯特•温斯莱特 Kate Winslet饰)住在英国伦敦的乡村，而阿曼达(卡梅隆•迪亚兹 Cameron Diaz饰)则是洛杉矶的美国丽人。她们在天南地北的两端，却遇上了同样的问题：在感情上遭受了挫败，令生活灰暗无光。二人在网上聊天，商议在圣诞节到来之前，到对方的环境去生活，交互双方的住所作为度假场地。于是，一场令人兴奋的旅行开始了。爱丽斯…
