I've been laid up in bed recovering and for a day or so (maybe 3) I was on a horror flick rampage. 
And let me tell you....I watched some BAAAAAAAAD films. 
The worst was Human Centipede II. I actually had to turn it off. Worst. Movie. Ever.
I did watch a couple of good ones: 
Chained and 
Mum and Dad were both pretty good. 
For years I couldn't watch scary movies, so it was kind of a fun marathon!