Carl Morck and the Q Department return with the ninth case.

Homicide chief Marcus Jacobsen meets with his best investigator, Carl Morck, about a case that has deeply affected him. An unpleasant tangle of cases begins to grow under the hands of the employees of Department Q. A special task forces Carl, Asad, Rose and Gordon to bond tightly together.

After Q Department dives into the deaths of high-profile figures that were previously thought to be suicides or accidents, they uncover a far worse pattern and everything points to another person dying soon. In order to prevent a cruel death, in the difficult time of anti-covid measures, with a typical dose of humor and cohesion, they embark on a vicious battle for time. But in the meantime, a completely different case emerges from Carl's past like a snake that has finally caught wind of its prey.