He kills the dirty ones yeah....cleanliness next to godliness(Sodomy), that sort of thing........and yes...you are correct....it does basically take place in the shower....at least the most important parts...i.e. Female nudity...There are better in the genre but there are far worse......I think they actually reused the same set and cast for this movie as they did for another I released a while back Hell Penitentiary...at least for the shower scenes