Julieta is a teacher of fifty-five. She writes a long letter to her daughter, Antia, trying to explain all the things she has kept secret from her over the last 30 years. When she has finished her confession, she doesn't know where to post the letter. Her daughter abandoned her when she was eighteen and Julieta hasn't heard from her in the past twelve years. She has searched everywhere, but now realises that Antia has become a total stranger to her.