This is only the second of two films in the series that are actually based on the Wallander novels, the first being Innan frosten (2005). The rest are based on original stories by Wallander creator Henning Mankell.
The title "Den orolige mannen" translates to English as "The Troubled Man".
In Sweden this premiered in theaters, with the rest of season 3 released straight to video. Only later was it shown on TV.
The original Linda Wallander actress died some weeks after the first season had finished so she was replaced by another actress in this season.