A serial-killer attacks and murders young girls in the parks of Stockholm. The police have trouble finding any evidence to find the killer. But when a newsstand is robbed in one of the parks while the murderer strikes again, police inspector Martin Beck believes that the robber may be an important witness. Plot by Mattias Thuresson.

Summer holiday is over. Nora begins sixth grade and is drawn to intrigues and doesn't really know what side she's on. Or wants to be on. On one hand she feels sorry for the bullied Karin, one the other hand she wants to be friends with tough Fanny and Sabina.