Valeria Peralta

Emiliana (10) and Tobias (7) are forced to spend a few days alone at home. Elvira (their mother) has been put on a sleep cure due to severe depression. Emiliana takes on the responsibility of caring for Tobias during her absence so that her mother doesn't lose custody.

Catalina arrives with her family at the costume party for her cousin's birthday, on the outskirts of the city. Her presence makes her cousin behave strangely.