Forty years ago, Harriet Vanger disappeared off a secluded island. There was no corpse and no evidence. Her uncle, Henrik, is convinced that she was murdered by someone in her own family - the deeply dysfunctional Vanger clan. Disgraced journalist Mikael Blomqvist is hired to investigate, but when he links Harriet's disappearance to a string of gruesome murders from forty years ago, he needs a competent assistant - and he gets one: computer hacker Lisbeth Salander - a tattooed, truculent, angry girl who rides a motorbike like a Hell's Angel and handles makeshift weapons with the skill born of remorseless rage. This unlikely pair form a fragile bond as they delve into the sinister past of this island-bound, tightly-knit family. But the Vangers are a secretive lot, and Mikael and Lisbeth are about to find out just how far they're prepared to go to protect themselves - and each other.