Laura, a young nurse from a rural town, is hired to care for Amalia, an elderly woman who suffers from memory loss. One day, Laura makes a mistake with the medication and Amalia begins to remember things. Laura suspects the amnesia might not be a result of age. As she investigates, she starts to experience frightening events she cannot explain.

Pía, a writer recovering from a psychiatric crisis, organizes a reunion with former colleagues. Everything changes when Martín arrives, whom no one remembers and whom she believes to be dead. Paranoia or truth? What seemed like delusion could be hiding something real.