Germany. Longtime lesbian couple Katja and Isabella learn that their desire to have a child through artificial insemination is more than frowned upon by the medical profession, which cites "legal" problems as a reason. One doctor agrees, but the price is too high for the modest-income couple. Then they find a website offering a choice of donors, but the one they choose has strings attached. Meanwhile, the sheer difficulty of their quest is stretching their relationship to breaking point.