When detective Lois Elzinga is confronted with a series of murders in the city of Alkmaar, the trail leads to a seemingly non-existent woman. When Lois manages to find out her true identity, she puts herself in great danger.
When thirteen-year-old Britt is taken om the way home by an unkown man, detective Lois Elzinga and her team set up a major search. However, when the trail leads across the border, Lois seems to be losing her grip on the case.