http://www.imdb.com/title/tt0365125/...c=1;ft=20;fm=1
"The plot is pretty simple. Small town America is invaded by a bunch of sex addicts, each of their sexual quirks (from shelf humping to dirt worship) brought on by an accidental blow to the head. The whole town starts to convert, as the neuters (normals) lose the fight for decency."
(Attached -should- be the torrent for the film, if torrent reactor isn't lying to me)