A science fiction novel that tells the story of Charlie Gordon, an intellectually disabled man who undergoes an experimental procedure to increase his intelligence. After the operation, his intellect rapidly grows, enabling him to grasp the full extent of his previous situation and how he was treated by those around him. Algernon, a laboratory mouse, participates in the experiment alongside Charlie, and his fate foreshadows what awaits the main character. This is a profound work about humanity, acceptance, and the inherent value of every individual.