Summer 1910. Several tourists have vanished while relaxing on the beautiful beaches of the Channel Coast. Infamous inspectors Machin and Malfoy soon gather that the epicenter of these mysterious disappearances must be Slack Bay, a unique site where the Slack river and the sea join only at high tide. There lives a small community of fishermen and other oyster farmers. Among them evolves a curious family, the Bréfort, renowned ferrymen of the Slack Bay, lead by the father nick-named "The Eternal", who rules as best as he can on his prankster bunch of sons, especially the impetuous Ma Loute, aged 18. Towering high above the bay stands the Van Peteghems' mansion. Every summer, this bourgeois family - all degenerate and decadent from inbreeding - stagnates in the villa, not without mingling during their leisure hours of walking, sailing or bathing, with the ordinary local people, Ma Loute and the other Bréforts. Over the course of five days, as starts a peculiar love story between Ma Loute.
An American widow finds unexpected love with a man living wild on Hampstead Heath when they take on the developers who want to destroy his home.
Some young folks, tired of the society they're living in, plan a bomb attack over Paris before to take shelter for a night in a shopping center.
The unemployed Duval is contacted by a mysterious organization to transcribe intercepted calls. He accepts the job with no suspicions, since it restores stability to his life, but it will soon result in political shenanigans of all kinds.
Martha, an eighty-year-old former Canadian dancer, has been living in Paris for decades. Now losing her head, she is threatened to be sent to an old people's home. No way. Martha decides to call her niece, Canadian librarian Fiona, for help. Alas, when her relative arrives in the French capital, Martha has disappeared. Worse, Fiona loses both her identity documents and money after falling into the Seine. Now alone in Paris, the young woman is desperate. It is at this point that Dom, a homeless man who lives in a tent on the Île aux Cygnes, unexpectedly comes into her life..., for better or worse.