Anita makes a serious error while interrogating the girl, and the team tries to get their act together before everything falls apart. The widower arrives in Iceland and shines a light on the case that starts to take on a whole new shape.

Gusti interviews Lena and finds out how his colleagues have made a botch of things. Frida's under pressure and the imminent arrival of Gusti to town, which encourage Anita to look for assistance in a familiar place.

The autopsy confirms murder. Salomon visits Helga and Elin while Anita battles Gusti, who has extended his stay. Cold cases lead to new information, and a lovers' soiree takes an unexpected turn.

Another body is found, connected to one of the cases Frida and Anita are investigating. Mother and daughter are taken aback, and Salamon and Anita's relationship creates an unexpected opportunity for the investigative team.

Salomon and Anita's past is more important than anyone can suspect. Ragnar is updated about the status of the case, and together, Gusti and Anita put into action the most challenging project of her career and life.

The world keeps on turning. Anita and Gusti are in a race against time, fearing the worst. The past two years' events become more apparent, and it's evident that together they head for a final reckoning that will change everything.