Three teenagers from 'Toma Modelo de Peñalolen", the biggest shantytown in Chile,obsessed with the view of whealthy suburbs,that faces theirs,and influenced by magazines,Tv ads and outdoors surrounding them, dream about having the same. Lead by Avi, the blonde hair of the group, they entered a residential building by the front door, apparently to visit her uncle,take the fire scape and climbed into a luxurious flat. Soon enough,the media start calling them "Spider Girls"...
After suspecting that their police officer neighbor is a serial killer, a group of teenage friends spend their summer spying on him and gathering evidence, but as they get closer to discovering the truth, things get dangerous.