Here is the plot summary for "Friday the 13th" (1980): The film opens with a prelude to the horrors that are to come, as a young boy named Jason Voorhees drowns in the lake while on a camping trip with his mother, Pamela. Twenty years later, a group of teenage camp counselors arrive at Camp Crystal Lake for a summer of fun and relaxation. Among them is Alice Hardy (Adrienne King), a shy and reserved girl who has been invited to the camp as a favor to her friend, Brenda. As the group settles in, they begin to experience strange and unexplained events, including eerie noises and movements around the campsite. Despite these ominous signs, the teenagers are too caught up in their own personal struggles to pay much attention. There's Chris (Robbi Morgan), who is trying to get over her recent breakup; Shelly (Gloria Kaufman), a free-spirited artist; and Ned (Harry Crosby), a charming but slightly shady character. As the night wears on, the group decides to hold a party in an old cabin near the lake. It's there that they begin to experience the true horror of Crystal Lake, as one by one, they fall victim to the machinations of Jason Voorhees, who has grown up and become determined to exact revenge on anyone who dares to set foot near his childhood home. As the body count rises, Alice finds herself at the center of the chaos, forced to fend off Jason's attacks and uncover the dark secrets that lie beneath the surface of Camp Crystal Lake. In the end, it's a race against time for Alice to survive the night and outsmart the masked killer before he claims her as his next victim. "Friday the 13th" is a classic horror film that has become synonymous with the slasher genre. Its blend of suspense, gore, and teenage angst helped to define the tone of many later films in the series, and its influence can still be felt today.