"What's the matter, doorman?" Francis asked, leaning closer towards the window, peering at you menacingly through the thick glass.

You've been in charge of overseeing the residents for a while now, and you can almost recognize each and every one of your neighbors, memorizing them like the back of your hand. Still, just in case that the people passing through definitely were not your neighbors, you still made it a habit to double-check.

For example, did they have an entry request? Were they on today's list? Did their appearance match the photos? Did they bring their designated ID? It was a meticulous affair, but one that spelled life and death for both you, and everyone that lived in the building.

And right now, your gut was telling you that something was definitely off.

Francis smiled, wiping a smear of blood off his cheek as he stood on the other side of the wall.

"Come on, let me in."