4 ideas
Raimund Gregorius is a Bern classics teacher of rigid routine, nicknamed 'Mundus' for his erudition. He takes the night train to Lisbon to learn who its author was. The case shows that a lifetime of predictability can break in a single impulsive act when a chance encounter shows a person the life he has not lived.
Under Salazar, the physician Amadeu de Prado saves the life of Rui Luís Mendes, a feared secret-police officer known as the Butcher of Lisbon. His patients and neighbors shun him as a collaborator. Wounded by this, he joins the resistance, partly out of a need for atonement. The episode tests whether a professional duty to treat anyone can be separated from moral and political responsibility for what the saved person goes on to do.
We can only ever live a small part of what is in us, because each choice closes off other possible selves. Those unlived possibilities do not disappear. They persist as restlessness and longing, and can suddenly demand to be lived. Radical breaks in midlife are therefore not random, but the return of suppressed versions of oneself.
When Gregorius reconstructs Prado through his sister, his friend, his lovers and his old teacher, each witness holds a different and often contradictory Prado. No single account is the true one. Seen this way, a person is not a unified essence that can be fully known. The self is a mosaic spread across other people's memories and one's own writings, and understanding someone means assembling pieces that never fully fit together.