This book accounts for the resurgence of Gothic, and its immense popularity, during the British fin de siècle. In particular, Kelly Hurley explores a key scenario that haunts the genre: the loss of a unified and stable human identity, and the emergence of a chaotic and transformative "abhuman" identity in its place. Gothic is revealed as a highly productive and speculative genre, strongly indebted to nineteenth-century scientific, medical and social theories, including evolutionism, criminal anthropology and degeneration theory.