An all-new Scream Queens aired Tuesday night and you'll never guess who makes a comeback. Ariana Grande's Chanel No. 2! It all started when Chanel (Emma Roberts) holds a funeral for No. 2 at the Kappa Kappa Tau house. During her eulogy, Chanel berates No. 2 for sleeping with her boyfriend, Chad Radwell (Glen Powell), and lists a myriad of other offenses, including the time she tried to push her down the stairs.
To calm her down, the other Chanels suggest that they contact No. 2 to hear her out and prove to Chanel that she's sorry. They grab a Ouija board and get to work, asking Ariana Grande's character to give them some answers. Her first bit of info? Chad is still cheating on Chanel. She flips out but when they go back to the Ouija board later to ask who the killer is, the board spells out "Y-O-U" to Chanel. The minions all point the finger at their ringleader as the red devil murderer. Once Chanel goes to bed via a laxative potion, the girls decide that their best course of action would be kill her first before she kills them.
While Chanel's asleep, No. 2 visits her in her dreams. She hates living in hell and admits the only way she can go to heaven is if she apologizes for her wrongdoings. Chanel accepts her apology and No. 2 warns her that the other Chanels are plotting her death.
The next morning, Chanel confronts her minions, but instead of punishing them for trying to kill her, she rallies them together to find the real killers. She thinks they are... Grace (Skyler Samuels) and Zayday (Keke Palmer)?
Meanwhile, Gigi (Nasim Pedrad) feeds a new lead on the serial murder case to Grace and Pete (Diego Boneta): a KKT member from two years ago named Feather McCarthy (Tavi Gevinson) who was kicked out by Dean Munsch. The two meet with Feather and find out that she had an affair with the dean's husband and is still with him. Feather was Dr. Munsch's student in the Beatles 101 class and they fell in love. According to Feather, Dean Munsch stalked her and even pushed a transistor radio in her bubble bath one evening, almost killing her (Pete and Grace note that that's exactly how the previous dean had died).
When Feather gets home that evening, she finds Dr. Munsch murdered, with his body parts strewn about the house. The detectives on the serial murder case arrest Dean Munsch for the murder of her ex-husband and assume she must also be responsible for the other campus murders. They haul her off in a straightjacket to a mental hospital.
She later calls Pete and Grace to her new hospital digs and tells them that Feather is the real trouble and they should investigate her. They're skeptical at first and don't believe the dean, but eventually decide to break into the house that Feather shared with Dr. Munsch to get DNA samples. They take her toothbrush from the house and the detectives match it up to a bologna sandwich that was left at the crime scene. Dean Munsch is immediately released and Feather is arrested for the murder.
In the last scene of the episode, Dean Munsch reflects on her ex-husband alone in her apartment, admitting to murdering him and framing Feather for it. She's been waiting a long time to get revenge on them and decided that it was perfect timing amidst all the other murders happening on campus.
Catch a new Scream Queens on Fox next Tuesday at 9 p.m. ET - if you dare!