As the whispers of revolution in Paris swirl around the port city of Marseille, Gilles Etienne, a clerk at the local soap factory, finds himself caught up in the furor for freedom. He and his friends soon plan to march to Paris to dethrone the monarchy, but everything changes when he meets Marie-Caroline Daubin, the beautiful daughter of the owner of the factory where he works. Marie-Caroline is a royalist, but the two begin to fall for one another even as they are on opposing sides. When Gilles catches Marie-Caroline in a dangerous secret that could cost her and her family their lives, and he starts to question the methods of his friends, the two soon find themselves in grave danger.