With a discussion about love, Hannah Arendt begins her lifelong, intense debate with Martin Heidegger. Yet, works can sometimes struggle to withstand the force of life. How else can it be explained that their love affair is widely known, while their philosophical reflections on the concept of love are almost unknown? Are they even significant? Tatjana Noemi Tömmel explores this "terra incognita" in her lucid book. From a multitude of fragments, she reconstructs the systematic function that the concept of love has in the works of both authors, while also tracing the silent dialogue that Arendt had with Heidegger about love.