Characterized by amoral ruthlessness, the politics of A Murky Business would seem to bear out Balzac's questionable precept.
Set earlier than most of Balzac's Comedie Humaine, the novel covers the years 1803-6, when Napolean was making himself first Consul and then Emperor. The inclusion of Napoleon himself, as well as figures like Talleyrand and Fouche, makes this a historical novel. But it is also an early example of the detective story, in which the sinister, implacable police agent, Corentin, stalks his way towards vengeance on his aristocractic enemies.