The Secret of Empress Sissi

Vienna, 1874.
More than twenty years have passed since Sissi and Franz first met. After the birth of children, sorrows and struggles, that marked their lives, it seems, that the marriage has reached a dead end, and whenever the empress can, He spends time at his beloved Gödöllő Castle in Hungary.
It is here that he meets Edith, an orphaned girl with a dark past who grew up in the castle, enchanted by the myth of the famous queen. At first glance, the two women couldn' t be more different, but deep down they share the same desire for freedom, a wanderlust, and a need to find someone who will love them for who they are.
Their destinies become inextricably intertwined thanks to a secret that young Edith will have to guard, which concerns a mysterious encounter at a masquerade ball that Sissi attended incognito. One night that forever marked her life.