Iris Broman leaves her old life in Stockholm and shifts to her half-sister's house near the sea in Ystad. She joins the Kalla Fall group in Malmö as the new manager. On the day Iris begins her job, a skull is discovered in the forest.
The probe into the disappearance of Benjamin continues; Iris and Jens successfully find new leads, despite Kerstin's refusal to keep pursuing the case.