Ester and Michael celebrate their silver wedding anniversary after 25 happy years. But when Ester discovers that Michael has betrayed her, she keeps a big discovery hidden from him.
The skull from the Tunnel Valley causes a stir at the National Museum and threatens the big Harald Bluetooth exhibition. Ester digs further and makes a remarkable discovery that becomes an explosive secret in her relationship to Michael.
Michael is sure of his theory, but Ester contradicts him in the press. The media seizes the case, and the conflict between the couple reaches its peak.