1947 Paris. Rising fashion designer Paul Sabine is offered the keys to Paris' fashion kingdom. But he can't do it alone. He needs the help of his volatile brother, Claude, the true genius behind the label. This secret will be kept at any price; but is not the only shadow that will threaten the atelier's fortunes and transform the lives of its work and blood family.

Under pressure to create the Spring show, the Maison is a hive of activity, yet Claude is not creating, and Nina is focused on finding her child. US journalist Rossi returns to question Paul's former boss and mentor, forcing Paul to punish those he loves. Claude finds an unlikely new muse, at the same time as the sailor's dead body is discovered.