The police try to discover the identity and state of mind of the hijacker; the victims find it hard to cope with the anxiety and fear following the hijacker's visits; Onerva reflects on the difficult decisions she made in her relationships.

The police are baffled when they learn about an eccentric creeper who breaks into people's houses at night and lies next to them but doesn't commit any violence; Onerva informs Harjunpää that she wants to leave the force.

Gang members from East Helsinki arrive at a grand youth party and open fire, killing a popular rapper from Espoo. Harjunpää and Onerva set out to locate the shooters.

The homicide unit discover the motive and identity of the architect's killer; Bingo fails to control himself and gets frustrated; Onerva has a budding affair; Harjunpää realises that he must find a solution to his father's situation.

When two of the victims of the stalker die, Harjunpää and Nykänen are spurred on to catch the perpetrator. The lonely and desperate ambulance driver dwells in misogyny and plans vengeance.

An unconscious woman, a victim of an assault, is located in Munkkiniemi. Harjunpää is assigned to the case, which seems to be linked to other attempted assaults that have been reported in the area. Harjunpää gets a new partner, Onerva Nykänen.

Shocking news from home causes a disruption in Harjunpää's concentration on a case, where a series of homicides come into light around the Helsinki-area. Someone arranges dead women's bodies on their beds.

The millionaire feels the pressure from the hackers and slowly loses his mind. A blackmail message arrives from the mischief-makers, and the victim decides to take the law into his own hands.