A gravitational anomaly is recorded at the Lagrange point between the Earth and the Sun. To understand what it is, and if possible to get this something in your hands, Russia sends cosmonaut Vladislav Roev, since automatic stations were not able to conduct reconnaissance. At the moment when the Molniya spaceplane, on which Roev flew, entered the area of ​ ​ the gravitational anomaly, it worked and captured it in its area of ​ ​ action. All attempts by the astronaut to break out of the gravitational grip came to nothing. Only a few moments before losing consciousness, Vladislav saw that the anomaly was not a natural phenomenon, but the work of an extraterrestrial civilization.