In the 70's, eighteen year-old Maria Fabiani lives with her French mother Diane in an old house in Buenos Aires, subletting rooms and giving classes to illiterate adults in the slums. One of the tenants, Felix, has a non-corresponded crush on Maria. When the teenager is abducted in her house by the Argentinean army accused of subversion, her mother seeks her out in the 23rd Precinct where one of the military without uniform tells her that they are heading with Maria. While Diane desperately tries to find information about her daughter, Maria is submitted to torture in the hideous underground of the Garage Olimpo.