The film, which is an ode to Rafael Hernández's song "Lamento borincano", is a social commentary of the political and social policies of the 40's and 50's which led to the abandonment of what was seen by many as the "pure", "virtuous" life of the finca (farm) for the "corrupting" influence of urban centers like San Juan and New York City.

A popular singer is suspected of being involved with a notorious drug dealer, el Tiburón (the Shark). Meanwhile, a friend of the singer is recruited by Interpol to find the criminal's real identity.

Successful nightclub singer has difficulties with her love life.

When a cheerful vagabond discovers a purse, the money and love letter inside make for interesting complications in his life.

A Puerto Rican goes to New York to seek his fortune.

The story of the 65th Infantry Regiment of the US Army composed almost entirely of Puerto Ricans and who participated in the Korean War, suffering heavy casualties.

Exotic dancer with a masochistic streak can't decide which of two boyfriends treats her more thrillingly badly.

A widower arrives in Puerto Rico with his son Angelito. The father dies and the boy goes to live with his grandfather who plays guitar in the streets. Angelito accompanies him singing and earns good money, but a political uncle accuses the grandfather of exploiting the boy and takes him to an orphanage.