This comedy horror rock musical centers on Nancy Nelson, a socially isolated high school student pushed to her breaking point by persistent bullying from her more popular peers. In a moment of desperation, Nancy cries out for help, only to have her plea answered by Satan rather than a benevolent force. The Devil transforms her into a fearless, provocative rock persona driven by vengeance, setting her on a path fueled by power, rebellion, and a growing hunger for souls.