Michel convinces his travel agent girlfriend that her company should turn some failing hotels in Thailand into brothels and market them to Europeans as sex tourism resorts, but his plan has deadly results. Michel and Valérie met when he went on a package tour to Thailand with money he inherited from his father, who was murdered.
Michel spends the vacation wandering from brothel to bar to nightclub, convinced the life is pointless. Eventually he begins... The Elementary Particles
Michel takes a sabbatical from his scientific research to think, and his half-brother, Bruno, takes plenty of time to screw around. We read about them as children, and we see them go through this year of their life, discussing philosophy, life, society, love, and where we are all heading. These men both are close to love but have it all dashed away, which leads Michel to start a new 'metaphysical mutation'....