Paris, 1869. Houses are being razed, whole neighbourhoods reduced to ashes. By order of Emperor Napoleon III, Baron Haussmann has set into motion a series of large-scale renovations that will permanently transform Paris into a modern city. Rose Bazelet is determined to fight against the destruction of her family home until the very end. She begins to write letters to Armand, her late husband. And as Rose delves into her memories, she reveals the secrets held within the walls of her beloved house.