凶残成性的“竖锯”（托宾•贝尔 饰）带着更新更诡异的杀人游戏回来了。又一位带着“竖锯”标签式的死亡特征的受害人被警方发现，亚洲这令探员艾里克•马休斯(当尼•沃伯格 饰)重新回到之前的惊悚噩梦之中。但出人意料的是杀人者留下了十分明显的线索，亚洲警方的调查取证工作十分顺利。其实，所有这一切都在“竖锯”(托宾•贝尔 饰)的掌控之中，留下线索并令自己被捕正是他进行下一个邪恶游戏中的重要前提：即将有8位相互陌生的人被迫加入游戏，而更疯狂的是，除此之外的另一位游戏者已经被锁定为马休斯。在“竖锯”的策划下，又一场充满惊险的生死游戏就要开始了……
回复 :A mathematician and author, Luke Williams, is travelling up to London on a train when he meets a old lady, Lavinia Fullerton, who is also going to London, to Scotland Yard. Lavinia tells Luke that in her small village several people have died. The local police are certain that it was all accidental and are taking no action but Lavinia isn't convinced. In London Luke watches, horrified, as Lavinia is run over in a hit and run and he becomes convinced that she was telling the truth. He travels down to the village and with the aid of a local girl, who is also convinced that the deaths were murder, sets out to solve the mystery.
郑丽君
回复 :no
回复 :前一波的食人鱼攻击终于画上了终点，此时，科学家们惊恐的发现，搅得人们天翻地覆的食人鱼居然还是处在初级形态的幼崽，天知道等到它们长大之时，又会闹出什么乱子！上一次的惨剧给谢尔比（丹妮尔·帕娜贝克 Danielle Panabaker 饰）的心里留下了深深的阴影，当她得知叔叔要在某处建立大型的豪华水上乐园时，谢尔比感到了强烈的不安。果不其然，不靠谱的叔叔为了节省经费，直接引入了附近的湖水，就这样，一大波食人鱼也随之而来，对于它们来说，一场饕餮大餐即将开席。面对着惨叫哭号的人们，谢尔比内心强烈的正义感让她无法对此坐视不管，勇敢的她连同幸存的伙伴们展开了轰轰烈烈的救援活动。
