April 30, 1962. The Algerian War has been over for two months, but Charles de Gaulle negotiated with the FLN during the Évian Accords to continue nuclear testing in the Sahara Desert. Under the eyes of officials gathered in an observation post located 5 km from the blast site, the Taourirt fissures, releasing a radioactive cloud: this will be known as the Béryl accident.

On Christmas Eve, we want everything to be perfect, yet things often go sideways. The holidays are a reality check for everyone, whether life is looking bright or dark. This Christmas, the residents of one Parisian apartment building are going to share an unforgettable holiday. They hardly know one another, only exchanging brief greetings when heading to work or taking out the trash. But this year, when neighbors who are jazzed-up, or depressed, or awed by the magic of Christmas find themselves thrown together, sparks will start flying.

When Paul Blick, 54, a renowned photographer, returns from a long trip abroad, he learns that his daughter Marie had been interned in a psychiatric hospital for schizophrenia.

Six jeunes en difficulté de la banlieue parisienne débarquent au fin fond de la campagne française, escortés par leur éducateur. Ils doivent montrer leur bonne volonté en effectuant des travaux d'intérêts généraux décidés par la pétillante juge d'application des peines, qui veut ainsi leur donner une dernière chance. Entre le portable vissé à l'oreille de l'un, le pit-bull de l'autre ou encore les prières musulmanes du troisième, ces adolescents vont bouleverser la vie paisible du petit village.

While France is occupied, Louise (70) tries not to give in to despair and continues to open the doors of her small provincial bar every day. The militiamen leaning on the bar are customers like any others. Everyone turns a blind eye when Louise buys from the black market to serve a kitchen worthy of its name. But in early 1943, on a cold January day, an English paratrooper landed in a tree not far from the bar. Louise, always fearless, comes to his aid. With Emile's help, she hides the newcomer in her cellar. Without realizing it, Louise has just joined the resistance...

Past 50 and unemployed for two years, formerly an acquisitions-and-mergers specialist, Maxime has been freeloading at his sister's for six months. Her boss Claire, a sexist, has a brilliant ten-year-old son, Jérémy, for whom Maxime is roped into being a full-time male nanny. And this is just the beginning of a progressive nightmare. But Jérémy has an idea...

Voluptuous and bored, rebellious sixteen-year-old Sabine is interested in sex and clubbing, and not much else. But when she leaves home to move to Paris, she finds herself plunged into a world harsher than she ever imagined, a minefield of exploitation that will test her courage.

In 1942, Edouard and Lucas are two childhood friends, both policemen in Nancy in different police stations. Soon the beautiful friendship between the two policemen will shatter with all the suffering and disappointment that implies.