Big-Lipped Alligator Moment: The fifth episode begins with Thelma in Cassie's dream/vision of a decadent 1920s party, with women snogging each other and the school's headmaster crooning on stage.
Thelma can usually be counted on to deliver at least one per episode.
The Jez/Roxanne sex tape is an in-universe one. When Roxanne's friends see it, they all burst into uncontrollable laughter. Even Ella cannot help but snicker over it.
Special Effect Failure: The genuinely disturbing scene of Max being tortured by Azazeal, Perie and Jez is somewhat undercut by the use of a very plastic-looking severed finger.
Too Bleak, Stopped Caring: The series falls into this towards the end of the second season, with just about every likable character corrupted, dead, or both.