The hero of “The Duke” is an elderly professor, knocked out of his usual life by his wife’s betrayal and the betrayal of a friend. In difficult times for himself, he rethinks his life path and, not finding real support in it, mentally turns to great people, including those who have died long ago, for support. In these messages of reflection - about God, time, the meaning of life, the death of ideals - the professor tries to gain a new perspective on the world in order to gather strength in the face of further trials.