This vicious crime thriller tells the story of Fanny (Fanny Cottençon), a cold-blooded woman who has served several prison sentences for petty crimes. Her hatred for Andrés (Bruno Cremer), an even more brutal policeman who once knocked out her teeth, is the emotional axis around which the story evolves. Andrés also killed Fanny's lover, and because of his violation of police regulations in his abusive treatment of Fanny, he was thrown out of the police force and now works as a guard for an armored car company. One day Fanny is told that Andrés is in Barcelona again, and she drops everything to go to the city with a few friends and rob the armored car that he is guarding. Her plans work out, and she exacts revenge on Andrés, but does not kill him. A mistake, perhaps, because he is soon back in full force against her and her companions -- and the gore and brutality continue with no hope of resolution, not even at the end of the film.