The Girl Who Played with Fire (Millennium, #2) by Stieg Larsson

In the second book of the Millennium Series, Lisbeth Salander finds herself accused of a brutal double murder. When two journalists investigating human trafficking are shot dead, all evidence points to her. As the police hunt her down, investigative journalist Mikael Blomkvist is convinced she is being framed. Determined to prove her innocence, he dives into Salander’s mysterious past, uncovering disturbing secrets. Meanwhile, Salander uses her hacking skills to track down the real killers. This fast-paced thriller unravels a dark conspiracy involving corruption, government agencies, and long-buried traumas.