Some bad reviews here for this and I understand why but treat it as a low budget serial killer film and you might get more from it than most.
I thought that this worked in a way because afterwards I felt dirty and wanted to take a long shower so that is some degree of success isn't it?
I would say there is just the right level of sleaze here to get under your skin although the acting is maybe a bit too uneven. David Hess is only in this brielfy so don not get your hopes up to much if you like Last House.
Other than that - worth a look.