In 1982, André Bamberski discovers his 14-year-old daughter, Kalinka, has died while on vacation in Germany with her mother and stepfather. Bamberski initiates an investigation after concluding that Kalinka's death was not accidental. His suspicions are heightened by a botched autopsy report, which leads him to accuse Kalinka's stepfather, Dr Dieter Krombach, of murder. Unable to indict Krombach in Germany, Bamberski attempts to relocate the trial to France, where he vows to devote his life to ensuring Kalinka's justice and Krombach's incarceration.