A story about two men caught in the Mexican revolution: close friends before, but now on the opposite sides. One of them is military officer, while the other one expects capital punishment. The prisoner's mother comes to visit his son, unaware that his former best friend is now his enemy.

Mercedes works as a cabaret performer to pay for her sister's studies. Problems begin when Mercedes and Paco, her exploiter, win a dance contest, but he refuses to share the prize with her.

A Paixón de María Soliña is a feature film with a historical setting which describes the Tribunal of the Spanish Inquisition through the inquisitorial trial against María Soliña in Galicia (Spain) in the XVII century, accused of witchcraft.