The lives of an ambitious businesswoman, a charming gang enforcer and a troubled teen collide amidst a desperate — and sinister — pursuit of wealth.

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.