The banal life of a middle-aged empty nester is violently shaken in the blink of an eye when hard-partying — and potentially dangerous — new neighbors move in next door.
Juan, a prison officer, silently observes the visit every Sunday of Berta, mother of one of the imates. The day he finally approaches her, he surprises himself by pretending to be another visiting father and inventing a daughter inside the jail: Josefina. The need to fill the vacuum of their lives prompts Juan and Berta to continue meeting outside the reality around them.