Carnival in a small town: Margaux, Louisa and Théo are getting ready for a night out. They put on their costumes, drink too much. Each one of them apprehends this evening in a different way. A night like so many others… But on the next morning, their lives will have changed forever.

The film consists of four stories with three episodes each, and a shared end. In the same span of time and action, and with the tones and pace of madcap comedy, each story tells the tale of protagonists coming from the four linguistic regions of the country.