Raimund Gregorius teaches classical languages at a Swiss lycée, and lives a life governed by routine. One day, a chance encounter with a Portuguese woman inspires him to question his life and leads him to an extraordinary book that will open the possibility of changing it. Inspired by the words of Amadeu de Prado, a doctor whose intelligence and magnetism left a mark on everyone who met him and whose principles led him into a confrontation with Salazar's dictatorship, Gergorius boards a train to Lisbon. As Gregorius becomes fascinated with unlocking the mystery of who Prado was, an extraordinary tale unfolds.
