You've given readers precious little to work with so the best anyone can do is just toss out some possibilities for you to consider.

Based on a couple of the fragments you offered up, you may have combined several films.

Could it be this one: The Magnificient Butcher (1979) -- It's old and common enough that you could have rented it in the time frame you mentioned.

Here's the synopsis and review: http://lovehkfilm.com/reviews/magnificent_butcher.htm

If this isn't it then maybe one of the other forum wizards can try to figure it out.

Don't Waste Your Time Watching Unentertaining Crap.