You decide to ride the elevator and you’re going up. A man gets in with you. 

He waits for you to press a button and he’ll press the button of the floor right below you. 

When you get to that floor, the door will open and the man will go out. As soon as the doors begin to completely close, he will turn around and make sure you see his knife, smiling in a creepy way at you.

Then you’ll hear him say “See you at the next floor." He runs up the stairs and waits for you. 

When the doors open, he will be there to kill you. 

The worse part is not the death itself, but the sheer horror you’ll experience in between those two floors, when you’re trapped in the elevator and you know you’re going to get slashed.