Unmarried Mara has mysteriously fallen pregnant. This poses a problem for her fellow residents of the small fishing village on the Danube delta, where Europe’s second longest river enters the Black Sea, and religion mixes with superstition like earth with water. Expelled from her village, Mara finds employment at the nearby spa hotel Tekir where infertile women are treated with the sacred Danube mud. When her world collides with that of the well-to-do, eccentric cosmopolitan Lili, magic combines with power and tradition with modernity to become the answer to Lili’s desire to have children – and Mara’s ‘immaculate’ conception.