Friday the 13th (1980)

In 1958 at Camp Crystal Lake, counselors Barry Jackson and Claudette Hayes sneak inside a storage cabin to have sex, where an unseen assailant murders them. Twenty-one years later, camp counselor Annie Phillips is driven halfway to the reopened Camp Crystal Lake by Enos, a truck driver, despite warnings from elderly Crazy Ralph. While driving, Enos warns Annie about the camp’s troubled past, beginning when a young boy drowned in Crystal Lake in 1957. After being dropped off, she hitches another ride from an unseen person, who chases her into the woods and slashes her throat.

At the camp, counselors Ned, Jack, Bill, Marcie, Brenda, and Alice, along with owner Steve Christy, refurbish the cabins and facilities. As a thunderstorm approaches, Steve leaves the campground to stock supplies. Ned sees someone walk into a cabin and follows. While Jack and Marcie have sex in one of the cabin’s bunk beds, they are unaware of Ned’s body above them, his throat having been slit. When Marcie leaves to use the bathroom, Jack’s throat is pierced with an arrow from beneath the bed. The killer follows Marcie into the bathrooms and slams an axe into her face. Brenda hears a voice calling for help and ventures outside to the archery range, where the lights turn on. Later, Steve returns and recognizes the unseen killer, who stabs him.