Unscrupulous and arrogant murder detective Evert Bäckström finds himself with the hardest case he ever had when a skull pierced with bullet holes is found on an uninhabited island in the archipelago.

Pregnant fifteen-year-old orphan Cecilia is sent to Ida's secluded mansion to hide pregnancy. Ida and maid Alma provide Cecilia maternal care, forming bond. Their relationship tested as Cecilia's childbirth nears.