The Evil Dead (1981)

The Ultimate Experience in Grueling Terror, The Evil Dead is a movie so relentless that it will stand forever as a landmark in modern horror history. When a group of college students finds a Sumerian Book of the Dead in the old wilderness cabin they've rented for the weekend, they unwittingly unleash a demonic force from the surrounding forest. As each of the kids are possessed by the demons they've let loose, body parts and bodily fluids go a-flying until only one young man is left to face down the Evil Dead.