Steamboat Gothic is a sweeping Southern family saga set in nineteenth-century Louisiana, centered on the proud and imperious De Clouet family of the fictional parish of St. Jean. The novel explores the decline of an old Creole aristocratic household as its members struggle with rigid social codes, racial tensions, and personal betrayals in the years surrounding the Civil War.

At the heart of the story is the formidable matriarch, Madame De Clouet, whose authority governs her children and the plantation they inhabita grand, decaying mansion nicknamed Steamboat Gothic for its ornate, riverboat-like architecture. Her children, particularly the beautiful and sensitive Amelie, grapple with expectations of loyalty, marriage, and duty while longing for independence and emotional fulfillment.

As war and Reconstruction reshape Louisiana society, the familys wealth, influence, and illusions of permanence begin to erode. Romantic entanglements, secrets, and generational conflict intensify the drama, revealing how pride and tradition can both sustain and destroy a lineage.