This film left me on the fence, the plot often makes no sense, and as the killers try to "kill" the character of Stephen Lack, I wonder if the intentions of the character played by Michael Ironside were true or merely attempts to convince the protagonist to join him. Moreover, although most of the characters are poorly worked except the character Darryl Revok, the special effects are really impressive, very detail and excellent makeup for a 1981 film, this movie for me was the kickoff of excellent films in terms of special effects that were to come (Videodrome, 1983 - the Fly, 1986) created by the hands of the master David Cronenberg and his competent staff.
Guess I just did not like the movie more, because what attracted me to him were his special effects, although I believe that movies are timeless and has no quality jeopardized by the passage of time in terms of originality and brilliance, although I guess I would liked the movie much more if I had seen 30 years ago.