Gustavo Mosquera R.

In the Buenos Aires subway system, an entire train mysteriously dissapears without leaving no trace. As the general director tries to come up with an explanation, other mysteries come up: the train is heard, but not seen, and the sign lights blink incoherently as if they sensors felt a train that was never there. A mathematician, Daniel Prat, is called to solve the mystery.

Against the backdrop of an increasingly-powerful police state, Miguel returns to Buenos Aires. An innocent bystander, he's shot by a rogue cop, Morea, at a political demonstration. To avoid scandal, the police place Miguel in the hospital as a John Doe, where nurses are drawn to his bedside. A tipster notifies the press and Miguel's father and also phones Morea with threats to expose and even kill him.