The Hunt for a Killer

10-year-old Helén Nilsson disappears on Easter 1989 in the small community of Hörby. Its a chilly evening and Helén will meet two classmates at the discount store a few minutes walk from home, but the young friends never meet. Six days after the disappearance, Heléns wounded body is found, raped and strangled. Detective Commissioner Pelle Åkesson wants to work with the investigation but is abruptly rejected by her boss. When Helens mother shows up at the police station and asks Pelle to take on the case, he promises to find Helens killer.

The unsolved murder of Helén Nilsson continues to torment Pelle. To move on, he begins to dig into the murder of the prostitute Jannica Ekblad. The investigation leads them to a new suspect, a man called the Pig. Pelle wants to investigate the murders in parallel, but this leads to a conflict with his boss which has major consequences.

Pelle secretly and against his bosss will sends DNA from Helen to a lab in Birmingham for analysis. Now Pelle is in a hurry. This is the last chance before the investigation will be closed forever. The prosecutor gives Pelle the go-ahead to explore a number of DNA suspects.