With Louise's world falling apart, the case is taken over by Jacob, Frederik’s second-in-command. Jacob is determined to track down the killer, but must also contend with Louise - who soon discovers a shocking new lead.

Alongside Jacob, Louise tries to prove Gunnar’s guilt and uncover his motive. It appears that the loss of his daughter in a car accident and the driver's short sentence was the catalyst for Gunnar's murderous campaign.