The film is adapted from the first part of Stieg Larsson's Millennium Trilogy, a Swedish detective novelist. It tells the story between a miraculous female hacker and a journalist. On a certain month and day, 16-year-old Harriet Vanger mysteriously disappeared. Forty years later, a journalist named Mikael Blomkvist was given a special task by the business tycoon Henrik Vanger to investigate the past of the Vanger family. Everything about Harriet was shrouded in mystery. Mikael resigned from his job at Millennium Magazine and received help from a female hacker named Lisbeth Salander, the girl with the dragon tattoo.