The Strangers: Chapter 2 by Renny Harlin
Some movies are so impressively bad that you're kind of impressed they even got made. The Strangers: Chapter 2, by Renny Harlin, is one such movie.
I was on a great run of horror movies in the last few years, but this one has brought that to an abrupt halt. The original is legitimately good. Most films don't really need a sequel.
Overall: 20
I use the 20-80 scale to rate things.