A fun musical comedy style of the 50s where the infectious rhythm of the son and the mambo, led by the hand by the incomparable Damaso Perez Prado, will a waste of good music and grace. With a formidable cast, and above all a fabulous collector's item.

A young man eagerly prepares for triumph as a boxer in a neighborhood gym with the firm intention of escaping poverty to marry his girlfriend, who sings in a nightclub.

An ingenious actor has an idea of making musical numbers without a dialogue when he arrives with a violin and a ladder.