Hired to investigate an unresolved missing person's case, discredited journalist Mikael Blomkvist headed to Hedeby Island in order to further explore the various twists and turns of the Vanger family history. Aided by the brilliant but deeply troubled hacktivist Lisbeth Salander, Blomkvist soon discovered a link between the disappearance and a brutal trail of murder, deception and dark secrets leading right to the heart of the Vanger family. But can the two investigators track down the culprit before another victim surfaces?