[6] In March 2015, the US publisher Alfred A. Knopf announced the English-language title of the book, The Girl in the Spider's Web, and released their cover art.

[7] The late author's literary estate is fully controlled by Larsson's brother and father, who hired Lagercrantz and have supported the latest book in the series.

[8] However, Larsson's long-term domestic partner, Eva Gabrielsson, has voiced criticism against this project and referred to Lagercrantz as a "completely idiotic choice" to continue the Millennium series.

She's brave, she's intrepid, she's unfrightenable, she's got a moral core (...) And I hope people will just welcome the return of this extremely unlikely pair of Salander and this crusading journalist.

"[8] Computer scientist Frans Balder abandons a prestigious job in Silicon Valley and returns to Sweden to take custody of his autistic son August.

Balder is informed by several law enforcement agencies that he is in danger of a criminal organization who call themselves the "Spider Society", but he ignores their warnings, preferring to focus on his neglected son.

She helps a group of hackers gain access into NSA servers, much to the fury of the agency's top cyber security agent, Edwin Needham.

Holtser's superior, a woman called Kira, orders him to eliminate the child, but Salander rescues August and reaches out to Blomkvist and Millennium editor Erika Berger.

Blomkvist learns from Balder's former associates that he had hired Salander to confirm that someone had robbed him, implicating executives inside Solifon, the company he worked for, in the theft.

He learns of an individual known as "Wasp", and catches the allusions to Marvel Comics characters Janet Van Dyne, the founding member of the Avengers, and their perennial foe.

An early review by Upsala Nya Tidning characterised The Girl in the Spider's Web as "standard crime", portraying more brooding, human versions of Blomkvist and Salander, while downplaying the earlier "exaggerated and cartoonish features of the series".

[15][21] Scott Rudin, Søren Stærmose, Ole Søndberg, Amy Pascal, Elizabeth Cantillon, Eli Bush, and Berna Levin produced the film, which is executive produced by Anni Faurbye Fernandez, Line Winther Skyum Funch, Johannes Jensen, and The Girl with the Dragon Tattoo director David Fincher.