It's been five years since the first success of the Department Q in
Department Q: The Keeper of Lost Causes (2013), and only two short years since the hunt for the serial killer in
Department Q: A Conspiracy of Faith (2016), and now, the division is facing imminent radical change. This time, two separate incidents--the gruesome discovery of a tortured trio of missing people and the unaccountable disappearance of a prostitute--set in motion the reopening of a twelve-year-old cold case that switches back and forth between the murky past of Sprogø Island and the present. With Rose searching for vital information, gruff Detective Carl Mørck and his invaluable partner Assad follow a faint trail of clues in a dangerous, opaque mystery of lost innocence, sinister master plans, permanently damaged women, and hate-driven vigilante justice. Is revenge, indeed, a dish best served cold?
—Nick Riganas