Lena, a fifty years old prisoner at the end of her sentence, is confronted with her life after prison. With the help of Aurélien, the social worker in charge of her follow-up, she visits her future apartment. But her first steps in the outside world are torn by this long-awaited and dreaded release. Lena tries to find her bearings in a place where everything reminds her how difficult it has become for her to live outside a 9 m2 cell.