After taking a bullet to the head, Salander is under close supervision in a hospital and is set to face trial for attempted murder on her eventual release. With the help of journalist Mikael Blomkvist and his researchers at Millennium magazine, Salander must prove her innocence. In doing this she plays against powerful enemies and her own past.

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.