Princess Diana dies in a Paris underpass on August 30, 1997, alongside Dodi Fayed and driver Henri Paul, and within weeks the internet fills with theories that the crash was no accident. This film, made in 2004 as Britain's Operation Paget inquiry was about to begin, draws on the French Judicial Dossier compiled after the crash and features Jean-Claude Mules, who led the Brigade Criminelle investigation, giving his first television interview about what his team found. Rosa Monckton, a close friend who holidayed with Diana two weeks before her death, describes the Diana she knew away from the tabloids. The film works through the claims made about political motive, intelligence agencies, and staged sabotage, weighing each against the physical evidence gathered at the scene. It does not resolve into a single verdict, but it tracks the same conclusion the later Paget report would reach two years on: nothing in the evidence substantiates the conspiracy claims. The friction between that finding and the theories' persistence is the film's real subject.