The red door at unit 403

When Ray moves into Unit 403 of the decaying Block D, the rent is suspiciously cheap — and there’s only one rule:



Never go near the red door at the end of the hallway.



At exactly 3:00 a.m., he hears knocking. Then whispers. Then shadows under his door.



The red door has no keyhole. No handle. Yet it’s calling to him.



What happened to the last tenant?

And what lies beyond that blood-red barrier?