The film is an adaptation of a romantic folk ballad by Adam Mickiewicz under the same title. It is a story of a mysterious lake, at the bottom of which rests an enchanted medieval town. ‘Świteź’ is an apocalyptic story of destruction, miracles, eternal fight of good and evil as well as faith and hope. All characters and elements appearing in the film are brought to life by a special technique, which enriched the animation with a lively painting.