Lisbeth Salander and Mikael Blomkvist reconnect when the journalist is approached by a renowned Swedish scientist whose groundbreaking work in artificial intelligence has made him a target. Professor Balder fears for his life and his son's safety, turning to Millennium magazine to expose a dangerous secret. As Blomkvist investigates, he uncovers a terrifying conspiracy that will test his courage and pull him back into Salander's world.
