Spooky creatures from unknown worlds of outer space have become a familiar element of many sci-fi stories. This one, made in the tradition of the old "Species" and "Dark Side of the Moon" movies, was no exception. Responding to the "SOS" signal of an unknown cargo ship, the rescue crew discovers a dead crew and a cargo of chemical weapons in its belly. Soon they discover the only surviving woman in a cryogenic chamber and, of course, they move her to their ship. Soon they learn the truth about what happened on that ship, at the cost of their own lives. Now no one will know who of the astronauts died first and who fought to the last to live, no one will listen to the screams of death and "barking" gunfire. And only a new "SOS" signal will carry lonely through the surrounding icy abyss of space.