Drew Angerer / Staff

Woman Stabs Friend At Haunted House With Knife!

This is terrifying.

A visit to a haunted house turned into genuine horror when a Tennessee woman stabbed her friend with a knife she thought was just a prop.

It happened Friday night outside an attraction called 'Nashville Nightmare'.  A group of four friends says they were approached by someone they believed was a character working there.

The stranger handed the woman a knife and told her to stab her friend.  She thought the knife was a prop, but when she stabbed the man's arm she realized from the blood that it was all too real.

The victim was treated by medics.  Nobody knows who the person who approached the group with the knife is.