Three stories that illuminate our changing world. These stories are told in the form of letters, as a way to build bridges across silence, distance, and the difficulties of life and finding a place within it. The stories of Amélie Charcosset, Hélène Koscielniak, and Noura Bensaad transport us to different continents and let us discover diverse horizons: from Canada to Tunisia, via Paris, the South of France, and Alaska. We meet a painter, a young biologist studying birds, and a nostalgic Canadian. Ultimately, these diverse stories are always about change, between evolution and revolution.