Nocturama is a kind of existential thriller in which a group of young people bomb and burn various Parisian landmarks. I use the word "existential" because their terrorism appears to be unmotivated; it's an acte gratuit that seems to stem from no political or social dissatisfaction. The narrative is elliptical: We watch the members of the group as they cross Paris to assemble at their various assigned targets before we even know where they're going and why. Eventually, there's a flashback that shows their preparatory meeting, but even that supplies only the most rudimentary information: that the explosive is semtex, which has been procured for them an older man named Greg (Vincent Rottiers). Their several missions accomplished, they regroup in a department store that's closed for the night, where they raid the food and wine department, try on the clothes, listen to music, and watch the news, which eventually reveals that their hideout has been discovered. Two of them are missing: One is killed in a showdown with a security guard, while Greg suffers a fate that we learn about in a curious way. The outcome is presented with a cold-blooded detachment. Bertrand Bonello breaks no new ground for the thriller genre, but skillfully plays with the viewer's reactions to the young protagonists, an alternation of censure and sympathy.