"Dr. Carl Stoner" (Strother Martin) is a herpetologist who is working on a special serum and needs funding from the nearby university to continue. Unfortunately, due to the lack of funds available he decides to take a serious shortcut and begins to experiment on humans. When one of his lab assistants supposedly quits he finds a new one named "David Blake" (Dirk Benedict) who seems more than eager to help the kindly doctor as much as possible. Also helping out is Dr. Stoner's daughter, "Kristina Stoner" (Heather Menzies) who seems to take a liking to David almost from the very beginning. Now, rather than reveal any more of the movie and risk spoiling it for those who haven't seen it I will just say that even though there were some scenes which were a bit creepy there were also other scenes that I thought were a little dull and predictable. Along with that, although I liked all three of the actors I just mentioned, I thought the overall plot was kind of silly and towards the end I found it rather difficult to watch without shaking my head in disappointment. Obviously, others may disagree but even so I rate the movie as below average.