Aller simple

Six people who do not know each other are invited under various pretexts to stay at the prestigious estate of a billionaire. The helicopter that is to transport them is forced into an emergency landing. As the group settles down to wait for help, mysterious accidents and disappearances follow one another. What could a former policeman, a religious art dealer, a retired teacher, a marketing director, a star criminal lawyer and a businesswoman have in common to find themselves trapped in this way?