A midsummer party turns into a nightmare when a girl mysteriously disappears and a young man is found dead. Detectives Andreasson and Holmgren return to investigate together.
Thomas and Mia continue their investigation into Victor's murder and try to establish what happened on Midsummer Night; Nora and Jonas finally find Vera, but the girl refuses to say where she has been.
Thomas and Mia get new leads in Victor's murder investigation; Nora tries to find out from Vera what really happened the night she disappeared and realises that the case could be linked to the young man's murder.