A look at the fashion icon that was Karl Lagerfeld, one of the most flamboyant and recognisable figures in fashion - and one of the most mysterious. His influence was immeasurable, from the Chanel catwalk to the high street - but how many people ever really knew the real Karl Lagerfeld? Weaving investigations in the present with Lagerfeld's biography – illustrated by illuminating and much unseen archive footage – this film shows his profound and lasting effect on those around him, including his beloved cat Choupette.