Do not open that door
In Panama Int. Airport departure area, I was asked to fill a temporary void in the departure shopping area.
I had a traditional home door fitted in an unfinished wall, that was totally alien amidst the usual branded shopping.
I drew my inspiration from Monsters, Inc. (a 2001 computer animated movie produced by Pixar), where skilled monsters, through doors that activate portals, venture into the human world to scare children and harvest their screams.