A group of political exiles conspire in France against their government. They are pursued by Daminoff, head of the intelligence service of the country of origin of the conspirators, who uses Nadia, a singer who soon betrays him by taking up the cause of his compatriots. Dramatic chases ensue until Daminoff, having tracked down Nadia and her friends, fires on Chief André and seizes the secret plans. But these are false. André, injured, is stricken with amnesia. Seeing Nadia again, he will become himself again and marry her.

Two state employees, Molot and Maurent, are very fond of detective stories. They open a private eyes agency, which only opens on Sundays. But the clients are rare, and some kind of Arsène Lupin steals their savings. They set out to track so called suspects down but everything backfires on them; however,one fine day, a man knocks on their door: he asks them to shadow his fiancee who may (or may not) be true to him. Maurent falls for her.

September 1944. the Normandy landings took place three months earlier. Paris is liberated, the allied troops are in Belgium. It was then, on September 5 precisely, that the deadliest bombardment of the war in France took place on the harbor. The result is up to the means implemented by the English air force: 3000 dead, the heart of the city razed, annihilated, without any military reason. Table Rase describes this forgotten murder that continues to haunt the city. Military archives, news of the time, intervention of English pilots, hypothesis of a French colonel, views of the port and the city before the war, and especially testimonies of survivors, the film goes around what remains of the event.