With Spain on the brink of civil war, a Madrid dressmaker follows a lover to Morocco. Suddenly left abandoned and penniless by her lover, Sira Quiroga forges a new identity. Against all odds she becomes the most sought-after couture designer for the socialite wives of German Nazi officers. But she is soon embroiled in a dangerous political conspiracy as she passes information to the British Secret Service through a code stitched into the hems of her dresses.