When a man is murdered inside his room at a retirement home, Kari and team question his three very different sons and his much younger girlfriend.

The week's events play out from a different angle, revealing new dynamics within the family. Meanwhile, Kari grapples with his own father issues.

After another key figure in the case is found dead, Kari revisits a suspicious tragedy in the family's past. Janina interrogates Jarkko on camera.