While filming a TV special about dolphins in Mexico, Eliana meets a biologist who warns her of an ecological danger, since the greedy Esquivel has stolen a crystal skull from the deep waters of the ocean. That's the start of a great adventure and a romance with the dolphin trainer.

The title of this story is taken from the name of the great Argentine singer Carlos Gardel, the idol of the antihero Toribio portrayed by Alberto Argibay. Toribio's goal in life is to emulate the famous singer and making his own way successfully in the music business. Yet at the same time, he does not stop his illegal means of making ends meet, stealing and petty thievery. Discouraged when his big break never quite materializes, Toribio heads for disaster when he joins up with a large smuggling scheme.