Denmark's cold case unit, headed up by Detective Carl Morck, investigates the disappearance of a civil servant who vanished on return from a work trip to Africa. Part of the international bestselling series from Jussi Adler-Olsen. 'As impressive as it is unnerving' }Independent Over three years ago, a civil servant vanished after returning from a work trip to Africa. Missing, presumed dead, the man's family still want answers. It is one of the many unsolved crimes left for Department Q, Denmark's cold case unit headed up by Detective Carl Morck.