Angelina Ortiz, "an honest girl who knows nothing," is the daughter of a brigadier as pompous as ridiculous, ironically called don Marcial. On the day of her hand request, Angelina runs away with another man. Their father and Rodolfo, the abandoned boyfriend, chase them. Don Marcial beats a duel with his daughter's kidnapper and wounds him, realizing then that his wife, Marcela, was being unfaithful to him precisely with that same seducer. The brigadier, after seeing his honor stained, decides to take drastic measures.