Estudios San Miguel (San Miguel Studios) was an Argentine film studio that was active in the 1940s and early 1950s. It flourished during the golden age of Cinema of Argentina, and at its peak was one of the major studios in Buenos Aires. Genres ranged from musical comedy to costume drama and gaucho thriller. Films included La guerra gaucha (The Gaucho War 1942), co-produced with Artistas Argentinos Asociados, and the comedy Juvenilia (1943), both of which won several major awards. Eva Duarte, soon to become the first lady of Argentina as Eva Perón, appeared in two of the studio's films in 1945. The studio became overextended financially and ceased production after 1952.
A melodramatic, psychological thriller, the film tells the story of a young wealthy widow, who is unhappy. She meets a Bohemian artist who marries her to escape the poverty of his family, but is stifled by her possessiveness and jealousy. The plot centers around a love triangle, which was bold for its time.
In Salta Province in 1817 during the War of Independence, the irregular forces commanded by General Martín Güemes carry out a guerrilla action against the Spanish army. The commander of a Spanish army contingent, Lieutenant Villarreal, is wounded, captured by the guerrillas, and put under the medical care of Asunción, the mistress of an estancia. She finds out from his idenfication paper that the Lieutenant, though serving in the Spanish army, was born in Lima. She persuades him of the justice of liberating America from Spain.