J ane Schoenbrun unveils a very enjoyable display of transformative ecstasy and submissive rapture, treating us to a bizarre pop-cultural black mass of fiercely believed-in trash and kink. As before with Schoenbrun’s films, I found myself thinking of Gore Vidal’s (still unfashionable) Myra Breckinridge novel. This is a film that somehow persuades you that the 80s slasher genre is an exalting and liberatingly progressive experience. As before, in her We’re All Going to the World’s Fair (2021) and I Saw the TV Glow (2024), Schoenbrun pulls off the trick of inventing an imaginary media phenomenon and treating it with complete fan-seriousness – an online horror game and cult scary TV show in the first two films and now a slasher movie franchise called Camp Miasma about a teen transgender killer called Little Death wearing a ceiling vent as a mask (why is never explained) who periodically emerges from a lake in a sleepaway camp where scantily clad young people will be brutally speared.…