The Milanese nobleman count Andrea Marcosini strolls to the Palais-Royal in Paris, where he spots in the crowd the extraordinary face of a woman with fiery eyes. She tries to escape him, but he chases her as far as a sordid alley behind the Palais-Royal where she disappears. If he is "attached to the step of a woman whose costume announced a deep, radical, ancient, inveterate misery, who was no fairer than so many others he saw each night at the Op...