Detective Inspector Eva Thörnblad (Moa Gammel) returns to Silver Height seven years after her daughter Josefine disappeared by a lake in the woods . The body was never found and the girl was believed to have drowned. Now a boy has vanished without a trace and Thörnblad wants to find out if there is a link to her daughter's disappearance. At the same time , she will take care of the legacy of her father, the great entrepreneur Johan Thörnblad, who build an empire of timber and timber processing on the large forest owned by his ancestors. As the plot deepens more children are kidnapped and what initially seems like a police drama takes a more sinister and stranger twist with each episode.

The series tells the story of DI Kari Sorjonen of the Serious Crime Unit in Lappeenranta, his family, and his investigations into a variety of harrowing homicides around the border area.

Rebecka Martinsson from Kiruna has not really found herself despite her big successes at a law firm in Stockholm. When a friend from her childhood passes away, Rebecka returns to Kiruna where she's drawn into a thrilling hunt for a killer.