Possession is a regular trope in horror and sci-fi. The idea that a physical body could be taken over by an external entity is as disturbing as it is enticing. However, there are many sub categories of this kind of bodysnatching, from parasites that physically puppeteer to Freaky Friday-esque body swaps. This week, Jules and Madeleine delve into the humour and horror of the trope, drawing on a wide range of speculative fiction and there own work where appropriate.

On the slab this week: Buffy the Vampire Slayer, V, the Bodysnatchers and many more.

Title music: Ecstasy by Smiling Cynic