"The production is dourly handsome, with great, chunky, dimly lighted sets that suggest dungeons out of the Middle Ages. They are actually so dark that sometimes it's not easy to know who is doing what to whom. Blood looks black, which may not be all bad. The alien is seen in glimpses, but it's seen often enough so that it seems to be nothing worse than a large, dark sticky lobster claw with a terrible disposition."