Comic artist Abby Howard has a door in her kitchen. It's behind the refrigerator, and there's no other place to put the refrigerator, so she doesn't know what's behind the door. To be honest, Howard might know what's behind the door, or it might belong to someone she knows. She didn't say. But the door is real, and it served as an inspiration. She wrote an entire story around it, and it's rather creepy.