Arter a tourist disappears inside a mine in Guanajuato, Mat Medina a young expert in mine engineering is hired to make a security diagnostic in the mines of a big company.
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Helena, an amateur theater actress living in Puebla, Mexico, arrives at the rehearsal of a play where she sees herself trapped between a number of parallel realities in an undefined time. Her conscience creates the illusion that she is living in the present, but the past continues and she can't remember the future.
In this film, the renowned muralist Juan O'Gorman bequeaths us his vision of art and life, as well as aspects of his professional career. In the last year of his life, O'Gorman tells the camera all the reasons for his lucid pessimism, in relation to environmental disasters, consumerism in art, and the causes of war.
