The untold true story of an intrepid team of four reporters of Knight Ridder who dared to ask the questions their colleagues did not in the aftermath of the terrorist attacks on September 11, 2001.

Journalist Mikael Blomkvist investigates the unsolved murder of a young girl that occurred forty years ago. Blomvisit's investigation draws him together with an unlikely ally; tattooed punk rocker Lisbeth Salander.