The video is not real. There is no video in that link. If you click anything in that link, it gets much worse than what you see here. You will be talking about a virus for sure. So go scan for a virus at the link I post below labeled for virus scan.
Here are two read ups on how to handle the Facebook hack and here is another a bit deeper on the Facebook virus issue. Sorry, I am just too lazy to write it twice.
Do not click the picture on Facebook that looks like it’s a video of a woman who is bit by a spider and has something sticking out of her stomach. If you did, please change your password now. If the password for your Facebook is the same password on the email account you signed up to Facebook, change that one also.
If you have been hit by the viral spider video scam on Facebook, or someone you know has. Report the post, then delete the post if you can. and then share this page. It will help inform anyone else who gets hit by this viral attack.
If you want to add anything, please feel free to do so below in the message box.