A mother kills her son when he puts on a Discman. Later, a young man named Eli arrives in the same small town of Harmony when his car breaks down. Everyone is friendly enough, including a young woman named Lucinda and her brother. However, music is strictly banned. Eli soon realizes that the townsfolk believe in a "Beast" that they think is awakened by music. He protects Lucinda's brother Tim when he's caught with a CD and insists the townspeople are misguided. He sings and nothing happens, inspiring the others. Unfortunately, then the "Beast" really does come.