Ten-year-old Helén Nilsson disappears at Easter 1989 from the small community of Hörby. Her body is found six days later. Detective Pelle Åkesson is disappointed when the case is given to an inexperienced colleague.

In the autumn of 1995, six years after the murder of ten-year-old Helén Nilsson, Åkesson and his team of detectives in Kristianstad learn of another body dumped very close to their police headquarters. In Swedish with English subtitles.

The unsolved murder of Helén Nilsson continues to frustrate the Kristianstadt team as they begin to investigate the murder of prostitute Jannica Ekblad.

Akesson returns to work, determined to fulfil his promise to Helén's mother to find her daughter's murderer.

Pelle secretly sends off a DNA sample for analysis, as he races to find answers before the case is closed forever.

Fifteen years have passed since Helen's disappearance and Pelle decides to tear down Ulf's cottage, where he finds traces of blood.