The novel follows the story of Jacques Austerlitz, an architectural historian who was brought to England on a Kindertransport from Czechoslovakia during World War II. As an adult, Jacques embarks on a journey to uncover his past, including his original identity, his parent's fate, and his own lost history. The narrative is a haunting exploration of memory, identity, and the lasting impact of the Holocaust.

In this novella, the narrative follows the famous composer during a whimsical journey to Prague for the premiere of his opera "Don Giovanni." Along the way, he encounters a variety of characters and situations that reveal his genius, quirks, and humanity. A mix-up at an aristocratic estate leads to a series of amusing and enlightening interactions, showcasing the composer's wit and charm. The story blends historical fiction with a light-hearted tone, offering a glimpse into the life and times of one of classical music's most celebrated figures.