Nine people come together for a vacation at a luxurious villa in scenic Provence. Under the merciless sun, a sense of serenity quickly gives way to tension: it turns out that each of the guests keeps their own secrets. Only one unfamiliar woman stands out — the mysterious Lulu, hired as a cook. But soon it becomes clear that her secrecy is not only her trait, and the idyllic getaway turns into a dangerous game of half-truths and suspicions.