By the middle of the third millennium, humanity had created a beautiful and great civilization. This is a world of soaring cities, floater houses, artificial exoplanets capable of flying like interstellar cruisers to the borders of the universe, and formidable allies. On Earth, each person can make their dream come true or just lead a life full of pleasure, but people still find an opportunity to lose hope or make one mistake after another. While the planetary authorities are holding back the progressive plans of the radicals, Major General Nikita Larsky, tired of service, is investigating a confusing murder in which an alien from the Far Reaches is accused. The story of the last defense witness brought from the frontier is full of white spots, but he is ready to defend the truth about the past even at the cost of humiliation.