Based upon the novel Andromeda Nebula by Ivan Yefremov. A group of humans on the spaceship Tantra are tasked with investigating an unexplored area of space. During the course of the voyage the ship is trapped by the gravitational force of an iron star and is held in place for 20 years. Surrounded by predators who eat human flesh through clothing, the crew begin to fall prey one-by-one, with the only source of protection being the light from the Tantra, which has the ability to scare away the predators. (In Russian language, with English subtitles).