An unconscious woman, who's a victim of an assault, is found in Munkkiniemi; Harjunpaa is assigned to the case along with his new partner, Onerva Nykanen; the case seems to be linked to other attempted assaults in the area.

Two of the victims of the stalker have died and Harjunpaa and Nykanen are desperate to catch the perpetrator; the lonely ambulance driver reveals his grand plan.

Young boys, hardened by their tough home lives, let off steam by committing crimes; Harjunpaa's wife wants to have a third child, but it's difficult for him to think about bringing another life into the world as he sees it.

The young boys who idolize professional criminals and freestyle wrestlers continue their spree of crime and violence; as the body count grows, Harjunpaa and Nykanen are forced to examine themselves as parents.

A start-up millionaire is shaken by identity theft and driven to the edge of sanity; Harjunpaa and Nykanen are surprised to be assigned to the case, as the thief only seems to want to create mischief; soon, there's a body.

Feeling pressure from the hackers, the start-up mogul is slowly losing his mind, and Harjunpaa and Nykanen are deep into the online world; a blackmail message arrives and the victim decides to take the law into his own hands.