A troubled police officer is forced back to her hometown. Confronting her abusive mother is inescapable but the discovery of a body changes everything. She's forced to search for a dangerous serial killer while stuck in a dark pit.

Fifteen months have passed since the tragedy of Svárta Sand and the shock is still heavy on the townspeople of Glerársand. Especially Anita, as she tries to be there for her newborn daughter and deal with motherhood. When Tómas's grandmother is found, the villagers are once again devastated. A murder a short time later reminds them that evil thrives on silence. An investigation reveals a cover-up of cases that have resulted in broken hearts, violence, neglect and ultimately mass murder. All these cases are related to Anita's family and now threaten to shatter her hope for a normal life.