Ana (Maribel Verdú) is a 50-year-old married woman with adult children who feels trapped in a monotonous life and routine marriage. Seeking an escape, she begins an online chat with Erick (Germán Alcarazu), a 15-year-old adolescent struggling with his identity and personal direction. They agree to meet in person in Bilbao, initiating an intense, unexpected encounter over the course of a day that challenges their generational gaps and emotional vulnerabilities.