A big Danish sustainable energy company has had an enormous, suspect growth. Problems start, when an employee's body is found and cop detective Justesen starts investigating Energreen.

Bjørn investigates the killing of his daughter. People around him believe she might have committed suicide, but he doesn't accept that. Both the stakes and the suspense rise relentlessly as Bjørn inches closer to the truth.

Investigator Jan and profiler Louise constantly move around in the thrilling periphery of a murderer's view as they link a series of killings.