A fascination with 'La Castiglione' led Nathalie Leger to weave together this imaginative biography. Mysterious yet over-exposed, adored and despised for her beauty in equal measure, Castiglione was a flamboyant aristocrat, mistress of Napoleon III and a spy. Examining the myths around icons past and present, Leger meditates on the half-truths of portrait photography, reframing her own family history in the process.