When a genetically modified spider bites you, it's bad. Usually after this they simply die in convulsions, foaming out of all the cracks. When you survive the bite of a genetically modified spider, that’s good. Sort of. One chance in a billion, your DNA chain has entered into a perfect symbiosis with the mess of chromosomes that mad scientists stuffed into an eight-legged body. But at some point it all comes down to the pressing question - when do you yourself become a genetically modified spider, which can create other genetically modified spiders, is this good or bad?