Cécile spent the weekend with her parents. On Monday morning, she sits exhausted on the early train and regrets not having returned to her husband and child the night before. The seat next to her is empty, and a man sits down. Cécile recognizes him immediately: Philippe Leduc. Philippe also recognizes Cécile right away. But they sit in shocked silence. Each of them, in their own thoughts, remembers during the one and a half hours to Paris how in love they were thirty years ago when they wanted to spend a romantic weekend in London, and everything went awry. The closer they get to Gare de l'Est, the more one wants to know: Does the journey end there, or is there a next time?.