Ok, the cover to me says gory slasher. The trailers say Rated R for "Pervasive strong horror violence and gore." (I have a different DVD edition of Sodomaniac than what is pictured here, with a gorier, grimier cover). Never mind all the phony reviews you can find online for this film (its present imdb rating is nearly as high as From Beyond!). I think this was supposed to be a horror comedy, only it is 100% devoid of laughs, and there's very little gore to speak of. What you're left with is a whole lot of "bro talk," with f-bombs being dropped every other word. This movie also follows the modern horror trope where all the main characters are unlikeable (I guess they ARE serial date rapists).
A group of guys calling themselves The Wolf Pack drug young ladies and have their way with them. Someone is killing them one by one with a giant ass on their head.
I enjoyed the twist ending, and that's all I'll give it. Otherwise, it's actually fairly insufferable. Oh yeah, no way this movie got rated R by the MPAA (more misleading), there is graphic sexual imagery in it. And the only thing pervasive is the level of obnoxiousness. The closing song is a Ramones cover, and NO Ramone is credited! Is that a hush-hush kind of deal?