Por una mujer casada

TRAPPED IN A BORING MARRIAGE WITH A VIEJO RANCHERO, MARGARITA IS SEDUCED BY DEMETRIO, A YOUNG BUSINESSMAN VISITING FROM THE CITY. WHAT SHE DOESN'T KNOW IS THAT HIS JEALOUS GIRLFRIEND IS WATCHING. WHEN MARGARITA'S HUSBAND FINDS OUT ABOUT THE AFFAIR, THE TWO MEN CLASH IN A DUEL FOR HER LOVE.