O2 (2020 film)

O2 is a 2020 French survival thriller film directed by Alexandre Aja. The film stars Mélanie Laurent, Mathieu Amalric, and Malik Zidi.

The film follows Liz Hansen (played by Mélanie Laurent), a woman who wakes up in a cryogenic chamber with a rapidly depleting oxygen supply. Suffering from amnesia, she must race against time, piece together her memories, and establish contact with the outside world to discover how she got there and find a way to escape before she suffocates. Assisted by a medical AI named MILO (voiced by Mathieu Amalric) and a police officer she contacts (played by Malik Zidi), Liz confronts a terrifying truth about her past and the nature of her confinement. The film explores themes of memory, identity, and the will to survive under extreme pressure.