In 1850s New Orleans, Julie Marsden, a willful and headstrong young woman from a wealthy plantation family, shocks the conservative Southern society by her defiant behavior. One of her most controversial acts is her decision to wear a red dress to the Olympus Ball, a prestigious event where unmarried women are traditionally expected to wear white. This bold choice scandalizes the community and alienates her fiancé, Preston Dillard, a successful banker. Julie's actions are driven by a desire to assert her independence and challenge societal norms, but they also stem from deeper emotions and insecurities, especially regarding her relationship with Preston.

Preston, upset by Julie's behavior and her insistence on flouting convention, leaves New Orleans for the North. During his absence, Julie begins to reflect on her actions and the ramifications they have had on her personal life and social standing. The community's disapproval weighs heavily on her, leading to a period of self-examination. Meanwhile, the city buzzes with rumors about a deadly yellow fever epidemic, adding a sense of urgency and danger to the societal drama unfolding. Julie's story is a complex exploration of pride, love, and redemption, set against the backdrop of a society on the cusp of change, where traditional values are being challenged and the roles of women are being renegotiated.