When a body is discovered in Falkenberg under circumstances that raise more questions than answers, Detective Inspector Kajsa Rudolfsson and her team are drawn into an investigation where nothing is quite what it seems. As the case unfolds, old secrets resurface and long-buried truths begin to connect people who believed their past was safely forgotten.

With pressure mounting and personal loyalties tested, Kajsa soon realizes that the danger is closer than anyone suspects. As past and present collide, the consequences threaten to become deadly.

Unknown Origins is the fourth book in the Falkenberg Murders series, a gripping Swedish crime novel set on the Halland coast, where small-town calm hides dark secrets.