Much ado is made of twins in horror films, and the “special bonds” that exist between these unique children seem endlessly ripe for speculation, usually running to the grim and excessive. In a world where uniqueness is prized and symmetry implausible in most cases, the effect of too-similar living beings … unsettles the sensibilities a bit.
So why not turn up the volume on our subconscious dread? Creepy twins, sure! Psychic, you betcha. Telekinetic and control the elements? Check and check. Riding bicycles and sporting a video camera with which to record who knows what garish, violent perversity? One shudders to imagine.