60-something Henri meets 50-something Lila, and sparks fly - until they both must reconcile their very different lives and backgrounds.

At the beginning of the 20th century, Célestin Freinet, the son of a farmer, had always dreamed of teaching. When, belatedly, he managed to land a teaching post, he found himself confronted by his pupils' lack of motivation. To get them interested in learning again, Célestin had the idea of abandoning traditional methods and turning his pupils into budding journalists.

Une bande de jeunes voyous inoffensifs vivote de petits coups. Après un braquage loupé, ils se trouvent dans l'impossibilité de régler leurs dettes au caïd du coin, qui, pour le rembourser, leur propose le cambriolage d'une fondation d'art moderne. Mais rien ne se passe comme prévu et tout s'enchaîne... mal.

A group of young unemployed people from Le Mans (France) decide to create a new political party.

Residents of an old building in a Parisian neighborhood are fighting against a plan to turn the place into a shopping center.

Clara takes her daughter and her friends to a weekend visit at her grandfather's village. They all have a great time, but after they return home people start dying. First Clara's grandfather mysteriously drowns, then the children start getting sick and one, her goddaughter, dies. Around same time clients at the spa she teaches aqua-aerobics start getting sick with one dying. She finds some mysterious algea, related to Caulerpa taxifolia, planted near where her grandfather supposedly drowned. Clara suspects the algea and all of these illnesses and deaths are related to some sort of poisonings of fish caught near her Grandfather's village.