Name of 80's(?) Movie w/ Kids w/ Purple Fingernails?
 

I saw a movie in the early 80's in which a small town is terrorized by a group of small kids who roam the streets with their purple fingernails. I think once touched by their hands their victims would die or turn into a dead crumbly zombie-like corpses or something like that. The movie starts out with a school bus driver driving small kids to school but somehow he goes off the road and ends up in a cemetery (I think). Later the kids emerge as possessed little creatures with a Frankenstein-like walk and purple fingernails. They proceed to walk back to their town and start killing everyone by simply touching them.
Anyone has a clue about this movie that I'm trying to describe?
Thanks.

Is it The Children (1980)?

You nailed it, Manchestr.

The Children Of Ravensback?

I'm sure you're capable of answering that question yourself..