Ainara is seventeen, a student at a Catholic school in Bilbao, and about to decide what to study at university. Her family expects her to choose a career. Instead, she announces that she wants to join a cloistered convent. The news splits her family open: her widowed father, already distant, seems willing to let her go, while her progressive aunt is certain something is deeply wrong. A drama about faith, family, and what happens when a young woman's conviction terrifies the people who love her.