[4][5] The parents of the dead child live with the maternal grandmother, Lilian, an acerbic hag engaged in a never-ending battle with her 'Neighbour from Hell' Kaj, who has built a new domicile next door to her profound chagrin; Kaj has a reclusive autistic son, Morgan, who spends many hours isolated in his room working on his computer; suspicions begins to point to him as the possible murderer, particularly as he had seen and spoken to the child on the day they died.

[6] Patrik would prefer to work on the case with his colleague Martin, but instead the less competent Ernst Lundgren is assigned as his partner.

[4] Chief Inspector Mellberg, divorced, tries to bond with his difficult teenage son Simon, who is staying with him for a while.

The roots of the problem lie in an earlier generation and can be attributed, at least in part, to the upbringing of offspring.

In the present, Erica and Patrik try to find a suitable parenting means; even the incompetent police chief becomes obliquely involved in raising an infant, albeit belatedly.