The main character of the book, Matteo Alacrán, is a clone who is created by a wealthy man named El Patrón. El Patrón uses the droplets of life to keep Matteo alive, as he is constantly being attacked by his enemies. Matteo eventually learns the truth about the droplets of life and must decide whether or not to use them to save himself.
The droplets of life are a powerful symbol in the book, and they represent the hope of a better future for Matteo. They also represent the power of science and the potential for good that it can bring.