Gripping documentary/thriller of the investigation following the attacks. Fast paced, relentless and brutally realistic! It keeps the spectator holding his breath and sitting on the edge of his seat all along,.at the end you come out of it feeling a mixture of relief after the police intervention, but also anger at the lack of consideration for the casualties that are left behind once the whole counter terrorist intervention is over. Well worth a watch as the acting is particularly convincing snd deserves the numerous nominations at the Cesar ceremony. Definitely dark and depressing but so we're the dreadful events the film is steeped in.