The Snake Pit

The Snake Pit is a 1948 American drama film directed by Anatole Litvak and stars Olivia de Havilland, Mark Stevens, Leo Genn, Celeste Holm, Beulah Bondi, and Lee Patrick. Based on Mary Jane Wards 1946 semiautobiographical novel of the same name, the film tells the story of a woman who finds herself in an insane asylum and cannot remember how she got there.

Virginia Cunningham Olivia de Havilland is an apparently schizophrenic inmate at a mental institution called the Juniper Hill State Hospital. She hears voices and seems so out of touch with reality that she doesnt recognize her husband Robert Mark Stevens.Dr. Kik Leo Genn works with her, and flashbacks show how Virginia and Robert met a few years earlier in Chicago. He worked for a publisher who rejected her writing, and they bumped into each other again in the cafeteria. Occasionally she continued to drop by the cafeteria so they get to know each other. ........

Source: Wikipedia