One night in post-war Paris, seven passengers board the same car of a Berlin-bound train. Over the course of the night, an American agricultural expert (Robert Ryan), a French secretary (Merle Oberon), a German businessman (Fritz Kortner), an English schoolteacher (Robert Coote), a lieutenant of the Russian army (Roman Toporow), a former member of the French underground (Charles Korvin) and a mysterious German (Peter von Zerneck) will be inexplicably allied as they attempt to locate a fellow passenger (Paul Lukas) who has been a crusader for peace.
