Friday the 13th

In the summer of 1958 at Camp Crystal Lake, two counselors named Barry and Claudette sneak away from a campfire and into a storage barn. They prepare to have sex before an unseen assailant enters and murders them. Twenty one years later, on June 13, 1979, newly hired counselor Annie Phillips asks for directions to the reopened camp. The killer arrives at the camp and begins to murder the counselors one by one.