1914 - Aspiring journalist Anton arrives in Vienna where he meets Delphine, a woman of deep secrets. Anton is entranced by the light of first love, until his country declares war on hers.

1927 - For Lena, life in a small town has been harsh and cold. When her love affair with a young lawyer crumbles, she leaves to take a post at a remote snow-capped sanatorium.

1933 - Anton is sent to write about the same clinic, the mysterious Schloss Seeblick. In this place, on the banks of a silvery lake where the roots of human suffering are laid bare, two people will see each other as if for the first time.