https://letterboxd.com/film/the-slaughterhouse-killer/
In rural Australia a big nasty fucker named Box lives alone in shack and works in a slaughterhouse. You can tell early on that something is not right about this guy when he picks up some medication at the drugstore. At work a new guy named Nathan just out of prison shows up and Box has to show him the ropes. Before long they are partners in killing, sort of like Henry and Otis in Henry: Portrait of a Serial Killer.

Reminder: If you are looking for recommendations, first check out the spreadsheet where we have hundreds of recommendations separated by genre https://www.reddit.com/r/DisturbingMovies/comments/10b2r9b/community_movie_database_faq_and_public_access/ . If you're looking for sources, first check /r/DisturbingMovieRepo which has free sources for many of the films talked about here. If you want something added there, leave a comment or send the mods a modmail here.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.