Amnesia in the classrooom?

[KamenRiderSun]

So, this is my debut thread on the Frictional Games Forums. I've been a player of Amnesia and Penumbra for a few months, and have been trying my hand at custom story making lately. I love the games and how they're played, they make for a great experience, in my opinion.

Now to the meat of the post. I've been given permission from my psychology teacher to have Amnesia up on a projector screen to play in front of and with the class. [we're a very small class, only ten of us on a good day] But I have a little issue with time. I only have around twenty minutes to do this, and I'm leaning towards using a custom story as the intro to the game is a little slow, and explaining the plot would be a little time consuming if I loaded a save from a specific point. What I'm looking for is a custom story that sets up the atmosphere quickly without being cheesy, is well written, doesn't have pointless jumpscares, and holds interest for about half an hour.

tl;dr:

• Hi, I'm new
• I need a custom story for my class
• quick atmosphere setting
  
• twenty minute length [preferably]
• well written
• no pointless jumpscares. [teleporting naked guys in a closet with the iron maiden sound effect]
  

If you have any other advice, I'd love to hear it.