While set around the real life November 13, 2015 terrorist attacks in Paris, the film tells a fictional story with fictional characters. The project garnered immediate controversy when it started filming just two years after the attacks, with over 50000 people signing a petition calling to abandon the film. As a result, TV channel France 2 chose to indefinitely delay the film's broadcast. When it was shown to victims associations and people who were impacted by the tragedy however, the overall reactions were rather positive and the film eventually premiered a year and a half after filming wrapped.