Two couples drive to a remote cabin for a weekend getaway. They read from the Book of the Dead and awaken evil, gross spirits. Ash fights back, becomes a horror icon in the process.
I find it much more difficult to review movies I've seen many times before. What do you say about the Evil Dead? Its influence and relevance is off the charts. There are hundred of movies that were influenced by movies that the Evil Dead influenced. Octopunk had a perfect review of this last year (unfortunately I don't know how to link).
A hungry, young, Sam Raimi reinvented the horror movie by turning it on its side. In 1981, the Evil Dead offered the horror world something vastly different from the slasher prototype that everyone couldn't seem to get enough of for some reason. He used innovative camera techniques, boatloads of gore and an unheard of sense of humor to create a cult classic still going strong today.
So you don't have to love it but you should kind of bow to it on occasion. I lopped off a 1/2 star simply because the incessant cackling REALLY gets annoying towards the end.