The film tells the story of a real life fan of Boca Juniors football club, Mary Esher Duffau, who as a teenage girl adopted the identity of a man in order to survive on the streets of Buenos Aires.
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The real life La Raulito, Mary Esher Duffau died at the age of 74 on 30 April 2008 on the same day Boca Juniors played a Copa Libertadores match against Brazilian club, Cruzeiro Esporte Clube with the players and fans observing a minutes silence in her remembrance.