If you watch this movie with any seriousness at all, you will suffer. If you watch it and try not to laugh, you may be surprisingly entertained. Try not to laugh at most of the death scenes. Try not to laugh at Ginty trying to act. Try not to laugh at abrupt and inappropriate jump cuts and transitional scenes, including the ending, that has sexy sax music played over it.
If you watch it that way, as I did, by the Scarab, you will be entertained!