A series of brutal murders of Polish women who secretly hiding in Sweden becomes the new A - team first case. The victims prove to be key witnesses in a major lawsuit against the Polish mafia . Three of them have been found murdered in the space of a few days , two missing and the hope is that they are still alive. Detective Kerstin Holm get command when the hunt for a ruthless killer and his shady victim begins.
The series is named after a small part of Saltsjöbaden called Solsidan. It revolves around Alex and Anna who are expecting their first child and have just moved to Alex's childhood home in Saltsjöbaden, Stockholm County. Alex tries to get Anna to enjoy herself, and at the same time spend time with his childhood friend Fredde.