The clock struck midnight. Your coworkers went home. You locked the doors and settled in for a quiet shift. Then you heard footsteps coming from the floor where no one was supposed to be.

In this episode, I bring you Volume 3 of the most terrifying true horror stories from people who worked the night shift completely alone — and encountered things that training never prepared them for. The first story follows a security guard at a warehouse who kept seeing a figure in the corner of his monitor. Every time he looked, nothing was there. He reviewed the footage the next morning. The figure was there. It was staring directly into the camera. The second story follows a hospital janitor who heard a code blue announcement over the intercom. The room number did not exist. He checked anyway. The door was locked. The light inside was on. The third story follows a factory worker who found a door in the back of a storage room. The door had no handle. The sign above it said Authorized Personnel Only. He pushed it open anyway. The room behind it had no floor.

Turn down the lights, put on your headphones, and press play because the night shift just got a whole lot scarier.