坊间流传着一个恐怖的传说，它和一盒神秘的录像带有关，传说中，凡是看过这盘录像带的人，会在七天之后死亡。理性至上的女记者凯勒（娜奥米·沃茨 Naomi Watts 饰）只将此当成是一个玩笑，可侄女凯蒂（爱波·塔布琳 Amber Tamblyn 饰）的死却让她的信仰产生了动摇。凯勒的姐姐告诉凯勒，凯蒂曾和三个同学一起看过一盘诡异的录像带，而这三位同学无一例外都死于了非命。 　　凯勒决定着手调查此事，她找到了凯蒂曾经看过的录像带并看了录像带中的内容，之后，一个神秘的电话预示了凯勒死期已近。想要活命，凯勒就必须在七天之内找到录像带诅咒的真相，时间紧迫，凯勒最终能够成功脱险吗？Rachel Keller is a journalist investigating a videotape that may have killed four teenagers (including her niece). There is an urban legend about this tape: the viewer will die seven days after watching it. If the legend is correct, Rachel will have to run against time to save her son's and her own life.