London 1870. A terrifying place for a young, beautiful woman of limited means. But Eliza is modern before her time. Not for her the stifling if respectable conventionality of marriage, children, domestic drudgery. She longs for more. Through her work as an artist's model, she meets the magnetic and irascible Devil - a born showman whose dream is to run his own theatre company. Devil's right-hand man is the improbably-named Carlo Bonomi, an ill-tempered dwarf with an enormous talent for all things magic and illusion. Carlo and Devil clash at every opportunity and it constantly falls upon Eliza to broker an uneasy peace between them. And then there is Jasper Button. Mild-mannered, and a family man at heart, it is his gift as an artist which makes him the unlikely final member of the motley crew. Thrown together by a twist of fate, their lives are inextricably linked: the fortune of one depends on the fortune of the other. And as Eliza gets sucked into the seductive and dangerous world her strange companions inhabit, she risks not only her heart, but also her life.