It's a really odd series of movies. There are like 9 in total I think.
<!-- m --><a class="postlink" rel="nofollow" href="http://en.wikipedia.org/wiki/Urotsukid">http://en.wikipedia.org/wiki/Urotsukid</a><!-- m -->Åji
Good read on the anime from Wikipedia.
If you enjoy rape, gore, tentacles, and cheesy plots, this is totally a score for you. Much better than Bible Black. God, those sucked.
EDIT: Couldn't get link to work with the url brackets. What fail. XD