Yes it's randy and a little shocking, but the overall feel of the film is so blasphemous that it's not at all surprising how controversial it is. Also, what a kick ass ending! From what I understand this is based on the same case as Peter Jackson's Heavenly Creatures and works as a worthy, sleazier companion piece.
One of the most brutal and devastating depictions of life behind bars and the prison system. It's no wonder criminals are not rehabilitated if this is what goes on behind prison walls. Save us RICKY!!!!