1913, in the heart of the Austro-Hungarian Empire.
Irisz Leiter returns to Budapest after spending his childhood in an orphanage.
His dream of working in the famous hat shop, once owned by his parents, was brutally shattered by Oszkar Brill, the new owner.
When Irisz learns that she has a brother of whom she knows nothing, she seeks to clarify the mysteries of her past.
On the eve of the war, this quest on his family origins will lead Irisz into the meanders of a world on the brink of chaos.