Beetlejuice 4x54

Beetlejuice gets pulled into The Chromazone, a Twilight Zone spoof. There, BJ has to help Tod Sperling defeat Ima Loony, one of his creations who has begun writing her own scripts. But BJ loses his mind (literally) in the process. If Lydia can't get into the Chromozone in time, BJ will be brainless forever, not to mention vapid.