Season 4 Episode 4 Tinker, Tailor, Demon, Spy
Someone’s not who they say they are and the lying might be coming from inside the house.
When Janet brings the results of a Pictionary game to life, Chidi’s poorly drawn horse is terrifying. Eleanor later finds Chidi practicing drawing to avoid causing further harm.
Glenn the demon, arrives and claims Michael is really a disguised Vicky. Janet’s “demon lie detector” causes Glenn to explode; he will take months to reconstitute.
Michael is unwilling to let his friends see his true form, a monstrous fire squid; with no other way to prove his identity, Michael prepares to blow himself up to protect the experiment.
Jason realizes Janet is an impostor and restrains her; she is a Bad Janet who marbleized Janet and sent her to the Bad Place on Chris’s train. So it’s off the the bad place to rescue (good) Janet.