阿姬塔和凯特琳娜(Iliana Fox 分饰)是一对双胞胎姐妹,自从童年时母亲死去后,姐妹俩拥有了一项特殊的能力。她们可以不用言语交流,无论身在何处都将对方感同身受。 某天,阿姬塔行车遭遇严重车祸,陷入昏迷之中。凯特琳娜通过精神力不断体验着妹妹的痛苦。在一系列神秘事件之后,妹妹和她的联系愈加频繁。凯特琳娜意识到这不是一起普通的车祸,她和男友努诺(Adrià Collado 饰)以及阿姬塔的同学奥马(Raúl Méndez 饰)再次前往事故发生地,希望找到拯救妹妹的办法…… 本片荣获2006年墨西哥电影金羚奖最佳视效、银羚奖最佳服装设计和最佳原声等三个奖项。While driving through the kilometer 31 of a lonely road, Agata Hameran hits a boy. She leaves her car to help the victim and another car runs over her and she falls in a deep coma. Her twin sister Catalina telepathically feels the pain of Agata and hears her whispering for help. Together with her boyfriend Nuno and Agata's mate Omar, they return to the km 31 of the road, and find out that the place is surrounded by supernatural accidents caused by the ghost of a mother that lost her boy many years ago. Further, Catalina discloses that the spirit of Agata is trapped between the worlds of the living and the dead.