Plot Summary:Driving home along a generally unused country road following a speaking engagement, famed mystery novelist Tess Thorne experiences a flat tire on her car. She accepts the help of who she believes is a good Samaritan who stops to help her, but who instead rapes her, leaving her submerged in shallow water in a drainage pipe as dead. She found out that he actually orchestrated her getting the flat tire just moments before the rape. Alive, she, in shock, is able to make her way home, but she does not go to the hospital, dealing with her wounds herself, does not call the police, or tell any of her friends or acquaintances how she sustained her obvious injuries. Once the issue of what happened to her settles into herself, she decides to use her skills as an investigative writer to find out the reason behind what happened - if she was a random or targeted victim - and especially if the latter, how best to use that information to her advantage. Using her stories' grandmotherly heroine, Doreen Marcus, as her inspiration, Tess decides that the best course of action is revenge, and figuring out a way not to get caught. In the process, she may discover more than she bargained for.
小有名气的惊悚小说作家苔丝·索恩（玛丽亚·贝罗 Maria Bello 饰）受邀去某地进行演讲，人生地不熟的她迷失方向，汽车还在某个根本没有手机信号的地方爆胎。当她手足无措的时候，孔武健壮的卡车司机（威尔·哈里斯 Will Harris 饰）出现答应帮她更换轮胎，然而这个暴徒见色起意，对苔丝进行了残酷的虐待，还把她丢在了一个浸泡着三四具女性尸体的坑道中。侥幸逃命的苔丝一路跌跌撞撞回到家中，她曾尝试报警，却最终三缄其口。在接下来的日子里，苔丝从混乱中理清头绪，她决定用自己的方式向那只禽兽展开报复…… 本片根据斯蒂芬·金的短篇小说改编。
