Movie Question?

Ok so this might be hard to figure out...

It was a TV movie probably in late 90's (1996-1999) and all I can really remember is during the end where the parents all picked like a rock and if they had a white one, they had to give their child to this man. And then the last scene was where the parent sees the kid older and like freaky looking.

I also remember the kids like cussing and stuff.

Anyone know what it was called? Sorry this is so vague but I remember being little and getting freaked out about this movie and know I was just thinking about it.