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.
Rosina is frustrated by her engagement to millionaire John Johnson III, a fussy, domineering, control freak. The night before her wedding, she goes out dancing with her maid María, María's husband Tomás, and their friend Gordillo. When Rosina learns Gordillo is a sailor on the yacht owned by Mexican film star José María Beltrán, she decides to stow away and sail to Mexico to be with her grandmother.