In 1948 the partisan violence whips the Colombian countryside. Liberals and Conservatives face up to death. South of the country in Tolima, conservative official forces brutally kill several liberal farmers, among them the husband of Rosalba Velasco. The young woman, mother of a two years old child, witnesses the massacre and suffers a psychic process of depersonalization and turns out herself an instrument of revenge and death. The young woman stands out for her courage and gains respect and admiration from his male companions. She will be further known with the alias Sergeant Matacho and will become a legendary personage among the incipient Colombian guerrilla movement. She dies at hands of the Colombian army when she is on the verge of giving birth a son of Desquite, a famous brigand of the time.