Star World Collection

The Cosmoecological Commission urgently sends Inspector Yanin to the distant planet Geona to understand why vampires, the natives of Geona attack the Galax research expedition, and how to stop them. Geona's mineral development is promising from a commercial point of view, and the air is suitable for breathing earthlings, in connection with which the Concern is going to colonize the planet.

On the planet, Yanin becomes a victim of vampires, but his American colleagues help him. They offer to play the plan they developed - to lure vampires with an ultrasonic signal and shoot. Yanin gives the go-ahead to conduct an experiment at the minimum signal power, together the astronauts fight with vampires, but later Yanin decides to look for another way and goes for reconnaissance. On the way, vampires attack him again, but he manages to recover from the disease they endure due to prolonged exposure to air and the ingestion of antibodies. He meets representatives of the intelligent race, and they explain to him that vampires get food for them and are an important part of the ecosystem.

A comic love story about a man who refuses to accept that old age is empty of love, meaning and value to society.