I collect anything horror related. Got the box set a few days ago and I thought the first one was a very well made chiller. It's about these babies that are born sort of like monsters as a result of drugs, and the parents don't know what to do with them. In the end I guess you wanted to feel sorry for them, evil or not. The sequel was also good. John P. Ryan is a great actor in the role of the man who wants to bridge a relationship with these sub-humans. I'm gonna watch part 3 in a little while, but I will probably not watch the remake - I detest most remakes, but I will see if I change my mind.
I think there are lot of movies made on the same theme where children are not normal and in future they become zombies.