The Girl who Played with Fire by Stieg Larsson

Mikael Blomkvist is contacted by freelance journalist Dag Svensson with regard to having Millennium publish his exposé on the sex trade in Sweden, which includes implicating government officials. Svensson and his girlfriend are murdered and the police believe Lisbeth Salander is the culprit. Blomkvist works to prove Salander's innocence while also trying to finish Svensson's piece and finds that both are connected.