What is Happening With That Extra Face in This Scary, Mysterious Selfie?

That just looks like a cute couple right? No! Look again, there's more to it! 



Do you see the face in the window there? Maybe it's a mirror but that doesn't make it okay that a scary version of her face is looking right at the camera from that reflection. 

So what's going on here? Are ghosts real or is this some kind of April Fools day thing?