One of the great universals of the horror movie is the way it plays on our ideas about sexuality. Stereotypes are probed for submerged fears and then turned into the stuff of nightmare. So, sexual predators become vampires and promiscuous teens are skewered by serial killers, while the waving tentacles and oozing orifices of bug-eyed monsters project our most polymorphously perverse sexual anxieties onto the screen.

Indonesia must be full of nervous men, as its cinema has thrown up some fantastically worrying images of rampant female sexuality, drawing on both traditional tales of supernatural terror and the anxieties of a society in rapid transition.