Wikipedia
Insheeption
"Insheeption" is the tenth episode of the fourteenth season of animated television series South Park, and the 205th episode of the series overall. It premiered October 20, 2010 on Comedy Central in the United States. In the episode, Stan and Mr. Mackey suffer a hoarding disorder. In an attempt to find the cause for it, they get trapped in Mr. Mackey's dream.
The episode was written and directed by series co-creator Trey Parker, and was rated TV-MA LV in the United States and MA15+(a) in Australia.