El poder del deseo Banda sonora (1975) BSO

A young advertising man named Javier falls in love with Juna, a mysterious woman he meets by chance on the street. Their relationship is complicated, because Javier doesn't know where Juna lives, and she doesn't want to be seen with him in public. Finally, Juna explains to Javier that in order for them to have a happy life, he must kill her despotic uncle.