Originally planned as a two part docudrama - "The child's story" and "The double sentence". In the years 1982-84 was three women prostitutes murdered in Stockholm. 27-year-old Catrine da Costa was the third in this row. The murders had similarities that never before was recognized. Two medical doctors identifies as murderers in the media. The two was at first convicted of murder in the district court and then acquitted by the District Court.

Fifty years after the Swedish author Stig Dagerman took his own life we view his short but intense career in retrospective.

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.