Natalia, a young journalist, meets Héctor as part of an investigation into cloning. Héctor is a biologist in his mid-thirties who is responsible for the care of a younger sister, Vicky, ten years old, and the questionable scientific legacy of his famous father. Parallel to his work at the university, Héctor is carrying out a dark experiment based on his father's research, but the love that is born in him for Natalia endangers his entire system of values and beliefs.