In the heart of Buenos Aires, a young woman, La Nena, finds solace in her apartment, her fingers dancing on her clit, hips gyrating as she masturbates. Her body responds to the rhythm, her nipples hardening, her pussy throbbing. She's lost in her own world, until a knock at the door jars her back to reality. She quickly covers up, but not before the visitor catches a glimpse of her bare flesh.