Quiet August evening. Lake with the strange name Morok. There are three people in the boat: Greta, Alex and four-year-old Smilla. Alex and the girl go to play on a small island, and Greta is left alone. Looking at the water, she forgets about time, and when she wakes up, she realizes that she does not hear voices or laughter. Feverish searches in the approaching darkness do not yield results. Alex and Smilla have disappeared without a trace. Greta is trying to figure out what happened, and she is overtaken by the past that she tried so hard to forget. Why did bruises begin to appear on her thighs soon after meeting Alex? Why does his disappearance so persistently evoke the death of her father in her memory? What is she facing: a brutal crime or the demons of her soul?