In rural Sweden of the 19th century, it was customary for poor families' debts to landowners or shopkeepers to be repaid through sexual reciprocity of women or daughters. According to well-established moral and ethical views and rather dubious interpretation of the Bible, they have the undeniable right to levy such a kind of "rent" from any woman who owes them. Tea is surrendered to such a creditor despite the suicide of her husband. His son later takes over the role of father, but when Tea's sixteen-year-old daughter has to take her place to pay the debt, the man is neutered by one of Tea's sons.
A salesman and his son sexually abuse the generations of women of a poor family as payment for debt. Janni must see his mother, sister, niece and wife all being exploited, and the family grow bigger with the abuser's kids.