During a quarrel, a village girl—carried away by emotion—swore that on the night of Kupala she would marry a forest spirit rather than an ordinary man. A certain mysterious figure, rumored to exist in the village, heard her vow and came for her. But will it be a harsh punishment for her rash words—or an unexpected gift of fate? Now the heroine must stand against a powerful sorcerer who instills fear even in forest spirits in order to claim her happiness. Yet what price will she have to pay for it?