A woman is taken to a mysterious clinic whose patients have a mental disorder in which their memories and identities are disintegrating as a result of a strange environmental accident.
La nuit des traquées is a 1980 French horror film directed by Jean Rollin, and starring Brigitte Lahaie, Dominique Journet, and Catherine Greiner. It follows a group of people who have lost their memories in an environmental accident and are confined in a high-rise hospital.