It is winter in Montauk, at the far end of Long Island. There are two deck chairs on the windswept beach. The chairs are waiting for two people who have, for a long time, been lost to each other. He is a writer and has come from Berlin. She is a New York lawyer. Many years before, they had a fling, but they were too young to know they had each met the love of their lives. Now they have come back to Montauk, filled with regret and hope. The bodies remember. It feels for them like the next day after the last one they were together. They do not know if it is possible to reverse time. In Montauk, they find out.
November 1918. A few days before the Armistice, Édouard Péricourt saves Albert Maillard's life. These two men have nothing in common but the war. Lieutenant Pradelle, by ordering a senseless assault, destroys their lives while binding them as companions in misfortune. On the ruins of the carnage of WWI, condemned to live, the two attempt to survive. Thus, as Pradelle is about to make a fortune with the war victims' corpses, Albert and Édouard mount a monumental scam with the bereaved families' commemoration and with a nation's hero worship.