It's a fairy tale about courage and perseverance. Six princes from King's first marraige have been turnted into swans by their witchy stepmother. The princes can only take their human forms during the night time. In order to break the spell, the young princess must weave six shirts out of starwort for her brothers, and neither speak nor laugh for six years. Not only her witchy stepmother, but also the wicked and powerful bishop step in the way trying to stop her. Will and how the princess succeed?