 Coming home after his father s funeral service, police officer Stefan Lindman phones his friend and former colleague Herbert to thank him for the wreath he sent. But the detective who answers the phone tells him that Herbert has been tortured and beaten to death. Determined to uncover the circumstances of Herbert s death, Stefan heads for his friend s farm in the north of Sweden - to which Herbert never invited him. It is an unfriendly place, where the locals keep to themselves and newcomers are considered intruders. Everyone makes it clear that he is not welcome there. At Herbert s farm, bloody footsteps on the living-room floor retrace a tango, danced by the dying Herbert in the arms of the killer. The prime suspect is soon found murdered. So should the police be looking for one or two murderers? Stefan begins to uncover many facts he didn t know about Herbert. He makes excuses for his friend - until Herbert is exposed as a Nazi. Realising he has been lied to all his life, Stefan feels fooled and exploited. Not knowing whom he can trust, he confides in Herbert s beautiful daughter, Veronica. But is trusting her another mistake?