The story of Sister Pascalina Lehnert, who was the personal confidant and secretary to Pope Pius XII for forty years, when he was the papal nuncio in Germany, and then for his whole pontificate. The Pope had great confidence in her wisdom, energy, and loyalty, and she became known as "the most powerful woman in the history of the Vatican."
Christine Neubauer
as Schwester Pascalina
Remo Girone
as Eugenio Pacelli / Papst Pius XII
Emily Behr
as Theresa Lehnert / Schwester Kreszentia
Georg Blumreiter
as Diener
Ronny Bregulla
as Priester kl. Kirche
Mareike Carrière
as Mrs. Valentine Miller
Tina Engel
as Tharsilla Thanner
Wilfried Hochholdinger
as Monsignore Wilson
Ulrich Gebauer
as Kardinal Michael von Faulhaber
Wolfram Kunkel
as König Ludwig III