Nothing too sexy or violent here.
There is a gross-looking monster. The humans who are hooked up to the computer have a little door that opens on their foreheads. That’s a little icky.
Everybody wants to be promoted to work on Floor 500. As it turns out, Floor 500 is really a horrible place where people are just used by an evil alien. How is this similar to normal life? Can you compare the desire to be promoted to Floor 500 with the desire to smoke cigarettes, have sex, or some other damaging behavior?
The Editor asks, “Is a slave a slave if he doesn’t know he’s enslaved?” To which the Doctor simply says, “Yes.” How are humans in this day and age enslaved without knowing they are enslaved?
What is the one thing that can free people from this enslaving?
How does the Doctor act like Christ in this story? He reveals the lies people were being told and breaks the enemy’s hold over them.