If You Ever Smell River Water Inside the Building, Stop Moving.

What would you do if your workplace came with rules you weren't supposed to break, rules that existed for reasons no one would fully explain? In this chilling creepypasta, a security guard at Chicago's Merchandise Mart discovers that following four mysterious guidelines is the only thing keeping him and others safe from something ancient and hungry lurking within the building's walls.

Disclaimer: This video features a fictional horror story created for entertainment purposes. Any resemblance to real events, people, or locations is purely coincidental.