A cold day in January 2006. The police make a horrible discovery in the Swedish town of Hudiksvall: In one night, 18 people have been brutally murdered in the small town. The police suspect a madman is behind the bestial act. But when judge Birgitta Roslin hears the news, she instantly knows that her grandparents August and Britta Andrén are among the victims. And even more: Almost everybody killed somehow relates to her. She realizes that the police are following a wrong track and starts to investigate on her own. Her search leads Brigitta to China where she finds out about the cruel scheming of the leading elite.

Steve, a young professional snowboarder, ruins a high-paying photo shoot by playing a silly prank. He, his girlfriend Branka and fellow snowboarder Joschi are left behind on the mountain. They seek shelter in an après-ski tavern that is hosting an all-night party. Things go from bad to worse when a scientific experiment unleashes an epidemic of zombies and mutant wildlife. This is mostly lost on the local drunkards, as they are not always easy to distinguish from zombies themselves. But Steve, Branka and Joschi have to find a way to survive this hellish night.