Grietje, Klaasje, Jenny and Marry, four sisters, who want to know whether their father is the biological father of Grietje and Klaasje;
Petra 't Hoen, who wants to know if her father Cor is her biological father.
Grietje, Klaasje, Jenny and Marry, four sisters, who want to know whether their father is the biological father of Grietje and Klaasje;
Petra 't Hoen, who wants to know if her father Cor is her biological father.
