Nell Sweetzer is a fictional character from the horror film series The Last Exorcism. She is portrayed as a young woman who becomes the center of a supernatural investigation. The story revolves around her experiences with possession and the impact it has on her life and those around her. In the films, Nell is depicted as innocent and vulnerable, struggling with her circumstances. Her character explores themes of faith, fear, and the unknown, making her a compelling figure in the narrative. The series delves into the psychological and spiritual aspects of her character's journey.