In 1917, during the last months of legal prostitution in Storyville, the red-light district of New Orleans, Louisiana, Hattie is a prostitute working at an elegant brothel run by the elderly, cocaine-sniffing Madame Nell. Hattie has given birth to a baby boy and has a 12-year-old daughter, Violet, who lives in the house. When photographer Ernest J. Bellocq comes with his camera, Hattie and Violet are the only people awake. He asks to be allowed to take photographs of the women. Madame Nell agrees only after he offers to pay.