On a rainy night in 1933, the young, rebellious and provocative heiress of a French champagne magnate, Gilda Bessé, storms into the quiet life of the timid Oxford undergraduate, Guy Malyon, taking him by surprise. And before he knows it, Guy is love-smitten, and taken in the Parisian apartment of the now famous photographer, Gilda, living under the same roof with her muse and Spanish political idealist, Mia. However, as Spain gradually succumbs to the Nationalists, Mia and Guy's commitment to the cause of the Spanish Republic will threaten to break up their bohemian and almost idyllic coexistence. In the end, as Adolf Hitler rises into power, can a war-torn Europe separate the three companions forever?