Lucio, a prestigious university professor, takes the position of substitute teacher at a high school in the suburbs of Buenos Aires, where he grew up. Through tales, novels and poetry, he tries to distract his class from the harsh reality of their everyday lives. But soon, he must step out of his professional duties when Dilan, one of his students, is threatened by a local drug kingpin.
Renata seeks refuge in the house of Virginia, her sister. Virginia lives a quiet life with her son Lucio in a provincial city and the only thing that seems to worry her are the ants that have invaded her home. Renata has nowhere to go. Virginia wants to help her and receives her; But the days pass and the drama of daily life begins to reveal the link between them, the pain of recognizing and rediscovering each other in a past that returns and takes strange forms.
