In an alternative Sevastopol—a city where all residents look up at the sky—life is calm and carefree. Everyone lives in two-story houses with shady gardens, and no one tries to leave the city. However, on the horizon there looms a mysterious Tower, where five friends—Feolent, Yevpatoria, Inkerman, Feodosia, and Kerch—are invited. They agree and go there, even though they know that none of them will return.