"Auto Da Fé" is a story about Peter Kien, a renowned sinologist who is obsessed with his library of books. His life takes a turn when he marries his illiterate housekeeper, Therese, who is only interested in his wealth. After a series of mishaps, Kien is tricked out of his home and ends up living on the streets. The novel explores themes of obsession, intellectualism, and the destructive power of the mind.

The book presents an intriguing alternate history, exploring two parallel narratives: one in which Adolf Hitler is accepted into the Academy of Fine Arts in Vienna, leading to a life as a modest artist, and another where he is rejected, setting him on the path to becoming the Führer of Nazi Germany. This thought-provoking exploration examines the impact of seemingly small events on the course of history and the nature of evil, as it juxtaposes the life Hitler could have led with the infamous one he did, raising questions about destiny, choice, and the inherent potential for good and evil within us all.