Friday the 13th (1980)

Despite warnings by the superstitious locals of a "Death Curse" Steve Christy hires a group of young people to help him re-open Camp Crystal Lake. Camp Blood is the name given to the camp by local residents as a result of the camp's dark history of tragedy and murder. The innocent roam the area while being stalked by a dark figure in the shadows, and are murdered one by one by an unseen assassin. In the end, the killer turns out to be a woman named Pamela Voorhees (Betsy Palmer), who is seeking revenge for the accidental drowning of her physically deformed son Jason, whose death was the result of negligence on the part of the counselors. She is decapitated by the lone survivor, Alice Hardy (Adrienne King). Alice, while waiting for the police to arrive, takes a canoe out to the lake where she is dragged down by a deformed but very much alive Jason. A final scene in a hospital indicates that Jason's re-animated corpse was a hallucination. Kevin Bacon co-stars as an ill-fated counselor.