Like every summer, nine friends get together on vacation by the sea. Every year, they take the opportunity to talk about the big thing of their life, sex. But there is a long way to go. Hugo is certainly not a bad lover but his fiancee, Alice, reproaches him for not being tender enough after being fiery. Subtle nuance that threatens the future of this promising couple. Nathalie and Hervé display an air of perfect harmony to better hide their frustration. Polo is too interested in football and sports newspapers to find time to think about his wife. And Stéphane finds it difficult to fix his mind on anything other than the unbridled sexuality of the Mori-Mori, an exotic tribe.