I'd rather take a photograph than be one, Lee Miller declares after she arrives in Paris in 1929, where she soon catches the eye of the famous Surrealist Man Ray. Though he wants to use her only as a model, Lee convinces him to take her on as his assistant and teach her everything he knows. As they work together in the darkroom, their personal and professional lives become intimately entwined, changing the course of Lee's life forever.

Lee's journey of self-discovery takes took her from the cabarets of bohemian Paris to the battlefields of war-torn Europe during WWII, from inventing radical new photography techniques to documenting the liberation of the concentration camps as one of the first female war correspondents. Through it all, Lee must grapple with the question of whether it's possible to stay true to herself while also fulfilling her artistic ambition--and what she will have to sacrifice to do so.