在经历了前两集的失败之后,修道士还不死心.他发现那个邪恶的魔方被一个花花公子买走了,于是他以这个花花公子做诱饵来吸引牺牲品,在人间大开杀戒.修道士打算把魔方毁去,这样他就永远不用再回到地狱.但是一个女记者发现了这些可怕的凶杀案,并将修道士又一次送回了地狱.....

A rich brother and sister are crazed killers. She lures men into her bed, and he attacks them and murders them. A detective is assigned to find the killers and bring them in.

In a violent world, a peace-loving man is forced on a desperate journey to find life-saving drugs for his wife but to get them he must first help an ornery old man defend his cabin against nefarious forces.

根据Paul Cleave的小说《清掃魔》（The Cleaner）改编。

　　当卡拉汉家掀起一个和平的家庭度假在山上他们没有想到个人的恶魔跟随他们。孩子们发现在僻静的小屋一个超自然的存在和两代人的秘密被揭示，永远变化着的生命以及死亡。