La sirène du Mississipi
Louis Mahé (Jean-Paul Belmondo), a wealthy tobacco plantation owner on Réunion island in the Indian Ocean, is awaiting the arrival of his bride to be, Julie Roussel (Catherine Deneuve), whom he has never met. They became acquainted through the personals column of a French newspaper and have been corresponding by mail. At the Hotel Mascarin he meets his partner Jardine who accompanies him to pick up the ring. Louis drives to the dock to greet Julie who is arriving on the steamer Mississipi (spelled with one p according to the French spelling of the river at the time) from Nouméa, the capital of New Caledonia. When they meet he is surprised by her beauty and does not recognize her; she is not the woman in the photo that she had sent him. She explains that she sent the photo of a neighbor to assure the sincerity of his intentions. He confesses that he too has not told the complete truth, having hidden the fact that he was wealthy.
Louis and Julie quickly marry, and his adoration of his new bride makes him overlook inconsistencies with what she wrote in her letters. He gives Julie access to his bank accounts and prints her image on the cigarette packs his company manufactures. After receiving an angry letter from Julie's sister, Berthe Roussel (Nelly Borgeaud), demanding to know the whereabouts of Julie, Louis returns home to find that Julie is gone, and that she has absconded with nearly 28 million francs, all but emptying his bank accounts. Soon after, Julie's sister Berthe arrives and informs him that the woman he married was not Julie and that she saw her sister board the Mississipi. They hire a private detective, Comolli, to track down the impostor and bring her to justice.
On a flight to Nice, France, Louis suddenly collapses from exhaustion. While recuperating in the Clinique Heurtebise sanitarium, he sees Julie('s impostor) on television, dancing at a nightclub in Antibes. He buys a gun and travels to Antibes where he breaks into her room at the Hotel Monorail, intent on killing her. When she returns and is confronted by Louis, she offers no resistance. Explaining that her real name is Marion Vergano, she tells him of her sordid past; of the years she spent in prison; and of her association with a heartless gangster, Richard, who was with her on the Mississipi. She recounts that when they met Julie Roussel and learned of her forthcoming marriage, Richard fabricated a plot to kill Julie and send Marion in her place to rob Louis. Afterwards Richard forced her to go through with the robbery and then abandoned her. She tells Louis that she still loves him, and Louis forgives her.
Louis and Marion buy a red convertible and drive to Aix-en-Provence where they move into a house together and spend their days traveling the region and making love. Their happiness is interrupted, however, by Comolli, who has arrived in Aix on the trail of the impostor. After trying in vain to bribe the detective to drop the case, Louis shoots him dead and buries him in the wine cellar of the house. Louis and Marion flee to Lyon, but she grows increasingly dissatisfied with their fugitive existence and longs for a life of luxury in Paris. Louis returns briefly to Réunion and sells his share in the plantation to his partner Jardine. Upon his return he finds the police are on their trail. Again they are forced to flee, leaving most of his money behind.
They head into the mountains where they find an isolated cabin in which to hide. They hope to cross over into Switzerland, but Marion is restless and unhappy with their life on the run. Louis becomes increasingly ill, and after nearly collapsing, he suspects that Marion has been putting rat poison in his coffee. He attempts to escape, but Marion brings him back to the cabin. As she pours him another glass of coffee, he reveals his knowledge of her plan, accepts his fate with no regrets, and expresses his overwhelming love for her. Ashamed at her actions, Marion knocks the glass from Louis' hand and vows to make amends. She acknowledges that no woman deserves to be loved like this, but she assures him that she loves him and that they can still go away together. Crying in his arms, Marion tells him, "I'm learning what love is, Louis. It's painful." After Louis regains his strength, they leave the cabin behind them in a snow storm and head off together toward the border.
murder