Childhood friends Jacques and Enzo share a passion for the danger of free diving. Jacques, following in the footsteps of his father, who died at sea when Jacques was a boy, harbors a remarkable ability to adjust his heart rate and breathing patterns in the water, with his vital signs more closely resembling those of dolphins than men.

Alexandre Boursault, a provincial notary, would have been the happiest man alive if his wife did not openly display her political views and participate in all kinds of demonstrations.

The mind of Pierre Bérard, a successful middle-aged architect, is torn between his unstable present with Hélène, his younger lover, and his happy memories of the past with Catherine, his ex-wife; but his true destiny awaits him at a crossroads on his way to Rennes…

A middle-aged businessman faces bankruptcy after his partner's suicide and a rival's unscrupulous offer to buy his company. Determined to avoid the trap, he finds an unexpected solution through a prostitute.

In Montauban in 1944, Julien Dandieu is a surgeon in the local hospital. Frightened by the German army entering Montauban, he asks his friend Francois to drive his wife and his daughter in the back country village where Julien has an old castle. One week later, Julien decides to meet them for the week end, but the Germans are already occupying the village.

Fred, a raffish safe blower, takes refuge in the Paris Metro after being chased by the henchmen of a shady businessman from whom he has just stolen some documents. While hiding out in the back rooms and conduits of the Metro, Fred encounters a subterranean society of eccentric characters and petty criminals.

A history of the French Revolution beginning from the decision of the king to convene the Etats-Generaux in 1789 in order to deal with France's debt problem. Part one spans the event until August 10, 1792 (when the King Louis XVI lost all authority and was imprisoned). Part two carries the story through the end of the terror in 1794.

With "little captain" Cambrai raising serious doubts about the reality of the so-called "super spy," Colonel Toulouse kidnaps Christine and forces Francois to play again the character of "The Tall Blond Man with One Black Shoe" in some fake adventures. All this to stop the investigation into the death of Colonel Milan.

In 1917, the First World War is raging. Julien is from Luxemburg, so instead of having to go to war he studies piano in Paris. One day his friend Jacques, also a musician and now a fighter pilot on the front, invites him to spend a few days in his family's empty house in Bray. The housekeeper, a beautiful stoic woman lets Julien in, but his friend is late and he is obliged to wait. In the meantime, he starts reminiscing of the pre-war days spent with his friend and Jacques' girlfriend Odile.

On his way from Madrid to Paris, Diego, a chief of the Spanish Communist Party, is arrested at the border for an ID check but manages to flee. When he arrives in Paris, he searches for one of his comrades to prevent him from going to Madrid where he could be arrested.