<P> The Killings of Copenhagen is the 100th episode of the world - famous British TV series Midsomer Murders . The episode is also the first where a murder takes place outside the United Kingdom, and only the second outside the fictitious County of Midsomer (the first being in Brighton, East Sussex in the 75th episode). It was filmed and produced in late autumn 2013 . In Britain this episode first aired on 12 February 2014 . </P> <P> Midsomer biscuit tycoon Mr Eric Calder stays at a hotel located at the large City Hall Square (Rådhuspladsen) during a visit to the Danish Capital . He receives and opens what appears to be an empty biscuit tin . However, he becomes dizzy, and after an attempt to wash his hands, he falls down dead . </P> <P> As the goods were sent from Midsomer, Danish detective Birgitte Poulsen asks Barnaby to investigate . DCI Barnaby and DS Nelson start their investigation at home, but when a second body ends up at a Danish biscuit factory in a shipment from Midsomer, they have to take a flight across the North Sea . Barnaby's in a hurry to finish because Sarah is nearing her due date . </P> <P> Barnaby, Nelson, and their Danish counterparts uncover a second life for the first victim in Copenhagen, one that circles back to Midsomer . They arrive too late to stop two more murders, but triumph in the end . </P>

Where was midsomer murders the killings of copenhagen filmed