They are both alone. They need each other but, at the same time, they despise each other. Siblings Marcos and Susana are unable to heal the old wounds festering within them after the death of their mother. When Susana sells their mother's flat, she deprives her brother of the home where he had cared for their mother his whole life. Marcos's need to start living again surfaces when his sister forces him to leave Buenos Aires for Uruguay.

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.

An enormous effort of narrative complexity made up of six independent, successive stories, connected by the same four actresses living very different experiences in very different universes…