Documentary that attempts to establish a portrait of the variable -and at times immeasurable- collective of Constitución Station. Vendors, train drivers, officials, the needy, opportunists and untimely offer a framework that is in daily tension between those who live the space as a threshold to other realities and those who live it as their living space. The film sets out to recover these small stories from a perspective as meticulous as it is distant, to observe each of these tenuous events as an impartial, silent and almost impressionistic spectator in order to obtain from this zero sum, the general portrait of a world.