"Abscheulicher! wo eilst du hin?" is an aria for soprano from Beethoven's only opera, "Fidelio." This dramatic piece is sung by the character Leonore, who is disguised as the male jailer, Fidelio, as she resolves to save her imprisoned husband, Florestan. The aria showcases Leonore's courage and determination, beginning with a powerful denunciation of the villain Pizarro, before transitioning into a lyrical and hopeful vision of her eventual reunion with Florestan. Beethoven's orchestration and the demanding vocal line combine to highlight Leonore's emotional depth and unwavering resolve.