Alexia, a young woman with a strong and idealistic character, arrives as a trainee nurse at a psychiatric hospital and meets Joëlle, the head nurse, who teaches her the job. Alexia is moved by the anger of Mila, a 20-year-old patient who feels like she shouldn't be there. Despite Joëlle's warnings about keeping her distance from patients, Alexia approaches Mila and puts all her effort into trying to get her out of there.