About an amazing lake in the north of the Nizhny Novgorod region. They say that in the waters of Svetloyar, the legendary city of Kitezh disappeared from human eyes. Thus he preserved his pristine purity... This legend has been around for many centuries, but it still attracts people. They are looking for something on Svetloyar that has been lost over the years — the original simplicity and righteousness. The documentary is a fairy tale.