In World War II, after a period of living hell on Earth in the concentration camp of Dachau with other Catholic priests, Father Abbé Henri Kremer gets nine days’ leave to return to his hometown for his mother's funeral. During this period, the SS Gestapo lieutenant Gebhardt tries to persuade Henri, who was born into a silver-spooned and influential Luxembourgian family, to convince the local bishop to give up resisting the Germans and write a letter to the Vatican in the name of the Catholic Church of Luxembourg, convincing the Pope to support Hitler and the Nazi regime. The ambivalent Henri questions himself and the bishop about what he shall do. Loosely based on Jean Bernard's Nazi-era prison diary.