The book narrates the whimsical and often humorous life of Martín Romaña, a Peruvian writer living in Paris. Through a series of diary entries, Martín reflects on his tumultuous relationships, his struggles with writing, and his existential musings. The narrative is rich with irony and satire, capturing the absurdities of expatriate life and the complexities of personal identity. Martín's exaggerated experiences and introspective journey offer a poignant yet comedic exploration of love, ambition, and the search for meaning in a foreign land.

The novel follows the life of Ricardo Somocurcio, a man from Lima, Peru, who becomes infatuated with a mysterious girl he meets in his youth. This girl, who constantly reinvents her identity, reappears throughout his life in various guises and names, leading him on a tumultuous and passionate journey that spans continents and decades. As Ricardo pursues a career as a translator and moves through different countries, he encounters the enigmatic woman in various circumstances, each time falling under her spell despite the pain and complexity she brings into his life. The story is a reflection on love, obsession, and the transformative power of relationships over time.