一天，一名青年从酒店楼上跳(🕟)楼自杀(🏞)了，FBI探员(🍀)史金纳（梅尔•吉布森 Mel Gibson 饰(shì )）奉命来到酒店调查。

面对暴力的罪行(háng )和她自己原始的恐惧，塞维琳被卷入了(le )一个永无尽头的残暴(🚆)游戏，踏(🍮)上了寻(🏝)找真爱(🕌)(ài )之路。

Paul was raised as a girl after his sister died. He has been collecting dolls ever since.　　But that has left him troubled and he was unable to cope with the pressure of a medicine degree.　　He now returns to his home town to work as a gardener at a local mansion. But after he arrives, murders start to happen.　　Is he responsible or are the answers in his nightmares。

一次朋友间的聚(jù )会，导演兼地产商的罗先生（张兆辉 饰(shì )）从港岛西重案组女督察猫姐林妙翠（张文慈(🏥) 饰）那(😒)里听来(📙)一宗女童虐杀案：11岁女(nǚ )童被生母李碧琪（唐宁 饰）打死，警方(fāng )在调查过程中发现女童长期遭人性侵。

凶残成性的“竖锯”（托宾(🥂)•贝尔(⛴) 饰）带(💶)着(zhe )更新更诡异的杀人游戏回来了。

但随着(zhe )线索的逐一呈现，事实的真相反倒令马(mǎ )克等人难以置信。

Jack以雪人形态重生，更以多种与雪有关的(🔲)恐怖杀(🚜)人方法(📶)继续肆虐，美丽雪景下将隐藏前所未有的杀机...。

李(lǐ )碧琪对于纵容同居男友长期性侵女儿一(yī )事置口否认，王瑞芳与几名手下在审(😐)讯室对(🤾)(duì )李碧(🔞)琪施行种种酷刑，但李碧琪始终毫(háo )不松口。

阿进注意到，那名跟踪者是自(zì )己的老同学森田正一（森田刚 饰），有(yǒu )着黑暗历史的森田周(🍿)身散发(💳)着黑暗(🛬)的死亡气(qì )息。

这个小渔村有通灵的神婆，也有善(shàn )良的酒吧老板，还有远处小岛上的灯塔(tǎ )半明半灭。