Jorge Villafañez is a rotund, veteran private detective living alone in a high-rise apartment in Buenos Aires. Discreet and meticulous, he has a knack of making people open up in conversations. But when a new assignment puts him on the trail of Elvira, an experimental choreographer, the distance between the observer and the observed begins to collapse as Jorge descends into the rising waters of the Delta del Río de la Plata.