Lisa Elsässer tells the story of the risk of engaging in something new despite being married and facing other obstacles. He is a guest lecturer in a European metropolis, while she lives in the plains, surrounded by mountains. Their paths have crossed only once by chance, but something must have sparked from the friendly darkness of his eyes, as they begin to write to each other. Emails turn into letters, which slowly evolve into love letters. Love gives them wings, but it also plunges both of them, who are bound by commitments, into a deep conflict. What can such a marriage withstand? Once again, Lisa Elsässer proves to be a specialist in life's fractures. With poetry, wit, and striking imagery, she combines intimacy with ruthlessness in her first novel. Infidelity dares to venture into the otherwise silent structures of lies in romantic relationships, exposing fears: fear of betrayal, fear of what is to come, and not least, fear of societal ostracism. Sometimes, as it turns out, it is better to take the train in the wrong direction.