Young, lovely Norwegian Agnes Gerner is waging a dangerous and secret fight. Outwardly, she is a devoted Nazi sympathizer engaged to a prominent businessman. In fact, she is part of an underground resistance doing everything to win the war against the Germans. The only hope she has of being reunited with the man she truly loves - who serves under the code name "Pilgrim" - is if the Nazis are defeated. Of course, there's no guarantee that she'll be alive when that happens....

Many years later, three sets of remains are found in a popular Oslo forest - two adults and a child. Despite his boss's call to not spend extra time on the old case, Detective Tommy Bergmann cannot help but dig deeper, especially as he uncovers connections to a more recent murder. As he unravels the secrets of the past, it becomes clear that everything is permissible in war - and that only those who reject love can come out victorious.