Mariana Mitre

Paulina is a young lawyer with a promising career in Buenos Aires, who chooses to go back to her home town. Her father, Fernando, is a well known judge. Against his will, Paulina decides to teach in a suburban high school as part of an inclusion program. One night, after the second week working there, she's brutally assaulted by a gang. With the disapproval of the people around her, she decides to go back to work, in the neighborhood where she was attacked, without realizing that her attackers may be even closer than she thought.

X arrives in a small town and witnesses a violent act; Z takes the job of a dead manager and discovers that he had a notebook written in code and a map; H is hired to go down a river and investigate a series of mysterious monoliths built on the shore.

Roque starts University in Buenos Aires but he is not particularly interested in attending classes or working towards a degree. Instead, he dedicates his time to one of the many groups vying for control of the university, motivated less by grand political ideals than by a wish to get close to Paula, an attractive young teacher heavily involved in internal university politics.