Joselito is a naughty boy that sings like the nightingales. He lives in a little town near Sevilla. He has a great success due to his magnificent voice and then he can practice charity with a girl from his town.
Madrid, late 19th century. A wealthy woman is found murdered in her home and her maid seems to be the main suspect; but her statement further entangles the case.
María de la O leaves her family and her former boyfriend Miguel to go with a rich landowner who's supposedly in love with her...