Lady Amanda blackmailed her way into a prestigious London medical school, the only way to force Lord Thornton, a professor at the school, to help her perfect her invention: a clockwork spider capable of spinning artificial nerves. When a foreign spy steals the spider from Thornton’s laboratory and uses it to perform grisly experiments on human subjects, Amanda and her professor must put aside their differences and their growing attraction to capture the killer terrorizing the streets of old London.