An elderly woman dies in a hospital in Stockholm and it turns out that she suffered from an incurable disease. Her son refuses to believe that it was the disease that was the primary cause of her death.

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.