[NSFW] Can anyone help me identify this movie?

This gif is very NSFW so just a heads up! But I saw this gif and I am very curious to know what movie it's from?

http://ift.tt/1SRFePr

This is a pretty messed up scene but I am so curious to find out the context of what's going on! I'm a big horror/ revenge movie fan :-)

Any help would be appreciated!

Submitted May 06, 2016 at 07:53PM by slayergirl69 http://ift.tt/1rxBpVc