Ash - the sole survivor of the original 'Evil Dead' - returns with his girlfriend Linda to the remote cabin in the woods. He discovers a tape recorder that a professor had used to record incantations from the Necronomicon - the Book of the Dead. When he turns it on, the recording releases a dark, sinister force from the woods. It turns Linda into a zombie, her soul possessed by some hideous demon, and then tries to do the same to Ash. Other people come to help Ash, but one by one they are taken over by the Evil Dead force that also possesses Linda, the Professor, and the Professor's wife...and they try to make sure Ash is...Dead by Dawn!
Trivia: When Ash is possessed of the evil presence and beats up the girl, he throws her on the couch and chuckles evilly (or hornily, same dif). He is stopped from committing further molestation by the sight of that ugly piece of jewelry that he gave to Linda earlier. When the necklace gets a closeup, the chain forms the outline of a skull.