By day a swan, by night a human, trapped at a lonely lake in the middle of the forest. This is the fate of the enchanted princess Estelle. She feels it is hopeless to break the curse. The meaning of the mysterious words on a secret parchment, which is the only key, remains hidden from her. Only when the young hunter Ayden appears at the Swan Lake does she gain new hope. Perhaps with his help, she can solve the riddle and follow the path that could end Estelle's existence as a swan princess? But what will happen to her sisters, who also seem to be afflicted by a curse?.