The killer strikes again. In the archipelago, a woman is kidnapped after appealing to Nora for help. Anna gets involved at the same time as Alexander's double game deepens, which turns out to have fatal consequences.

One of Nora's closest friends becomes the main suspect in the case and Henrik asks her for help. The clues turn out to reveal secrets from the past. The solution is within reach, but at the same time, Nora is faced with a difficult choice.