On a rainy Sunday evening in February, two men are executed with a machine gun in a car in Copenhagen. The murder weapon leads the investigative team and police detective Lars Winkler to the rocker crowd.

Journalist Louise has traveled to Vietnam to track down her biological mother. Whilst there she hears about a Danish company with a patent for a new — and not entirely harmless — variety of rice. When Louise returns home to Denmark, her apartment has been broken into. Someone is after her.

Lars Winkler tries to get to the bottom of a swamp of greed and organized crime that has threads to the Vietnam War, a rehab center for drug addicts and society's top political teams.