A fair word of warning...this documentary is shocking, sad, depraved and extremely fascinating. Simply from a character study point of view, this is one the most brutal and real things you'll ever watch.
Now, there are some tough subjects that get discussed in this video. I do NOT recommend you watch it if you don't want to hear about some real human atrocity. Do not watch this video if there are people around you (i.e. difficult parents) who would not approve. You've been warned.
But seriously...this is worth a watch, especially for anyone with kids.
"Child of Rage" (1990)