Catherine's trapped in a hospital where the patients aren't sick, they're wrong. The show moves like a fever dream, each episode a self-contained nightmare that never explains itself, trusting you to understand something you can't quite name. Horror here isn't jump scares or gore. It's the quiet certainty that something fundamental is broken in the logic of the place, and Catherine can feel it the same way you do, standing in a corridor that shouldn't connect to the next room. This is horror as dread, not spectacle.

Catherine works in a mysterious hospital, and each of the twelve short stories in this special follows her through her time there. Billed as the fourth series in the Gregory Horror Show line, it appeared as a side series on the DVD releases. The mix leans on horror, mystery and the supernatural while keeping a comic streak, so the strange goings-on at the hospital can be played for unease and for laughs.