一名阿根廷历史女教师原本对政治不闻不问，天真地相信课本上的一切。直到她怀疑自己的养女是一名政治犯的女儿，才开始关注这个国家的动荡现实。在调查女儿真实身份的过程中，她一步步揭露了政治腐败的真相，她对幸福生活的狭隘幻想破灭了。

When school teacher Harriet Winslow goes to Mexico to teach, she is kidnapped by Gen. Tomas Arroyo and his revolutionaries. An aging American, Ambrose Old Gringo Bierce also in Mexico, befriends Gen. Arroyo and meets Harriet. Bierce is a famous writer, who knowing that he is dying, wishes to keep his identity secret so he can determine his own fate. Though he likes Arroyo, Bi...