Mikael Blomkvist, publisher of Millennium magazine, has made his living exposing the crooked and corrupt practices of establishment Swedish figures. So when a young journalist approaches him with a meticulously researched thesis about sex trafficking in Sweden and those in high office who abuse underage girls, Blomkvist immediately throws himself into the investigation. As computer hacker Lisbeth and journalist Mikael investigate a sex-trafficking ring, Lisbeth is accused of three murders, causing her to go on the run while Mikael works to clear her name.