A crazed killer sneaks onto the set of a sci-fi film and begins murdering the cast and crew. A crazed killer sneaks onto the set of a sci-fi film and begins murdering the cast and crew. A crazed killer sneaks onto the set of a sci-fi film and begins murdering the cast and crew. A crazed killer sneaks onto the set of a sci-fi film and begins murdering the cast and crew.