Danish crime drama The Killing will be back on BBC4 in November. Actress Sofie Grabol will return for this third and final case, which finds Sarah Lund investigating a seemingly random murder at a scrapyard in the Copenhagen docks that transpires to have links with the global financial crisis.

As the new series opens, Lund has a newfound sense of peace in the form of a new home, new job and the recognition that comes from achieving 25 years of service with the police force. 

But homicide once again gets in the way of Lund’s plans for a quieter life, and this time she also has to deal with the reappearance of an old flame, Mathias Borch from the National Intelligence Service, who fears that the killing in the docks is the beginning of an assassination attempt upon the Prime Minister. 

Prime Minister Kamper is in the middle of a turbulent election due to the pressures of the financial crisis and is looking for backing from the commercial sector, including oil giant Zeeland, run by billionaire Robert Zeuthan. 

As the investigation progresses, destinies cross over all sections of Danish society and, as the promo material makes explicit, we build towards “a dark secret which eventually puts everything at stake for both the Prime Minister, Robert Zeuthan and Sarah Lund".

The Killing has proved a hit in both Denmark and across the globe. First screened in the UK in the spring of 2011, it quickly became the subject of media debate, thanks in part to Lund's distinctive Faroese jumper, which became a much sought-after item of clothing. The series was also remade for American audiences, although the US version was axed earlier this year after two series.