A woman wakes with no memory, trapped in a high-tech cryogenic chamber with a rapidly depleting oxygen supply. Melanie Laurent stars as the desperate protagonist in this claustrophobic sci-fi thriller, fighting for survival against an unforgiving countdown. With only the chamber's artificial intelligence for company, she must piece together the fragments of her identity and the reason for her imprisonment, racing to hack the very system keeping her alive. Directed by Alexandre Aja, the film is a tense, high-stakes puzzle where every breath is a precious commodity. As she uncovers disturbing truths, the battle shifts from a physical struggle for air to a psychological fight against a terrifying reality she never saw coming.