The Magicians: Season 1, Episode 4 - "The World in the Walls"
The entire scenario is a Scarlatti Web spell cast by Marina and Julia to distract Dean Fogg. Marina’s goal is to lower Brakebills' wards so she can break in and steal her erased memories. [S1E4] The World in the Walls
When the real Penny eventually enters the dream, he is furious at the "racist" orderly caricature Quentin's mind created. The Magicians: Season 1, Episode 4 - "The