In "Before the Frost", a fanatical sect is suspected to be behind some horrific violent crimes in Ystad. Henning Mankell's sharp-eyed commissioner receives assistance from her daughter Linda (Johanna Sällström), a newly-graduated police officer, and criminal inspector Stefan Lindman (Ola Rapace). The first of 32 films with Krister Henriksson as the popular commissioner Kurt Wallander