Following an emotional collapse a woman is placed in a mental institution by her husband. The severity of her depression causes her sympathetic doctor to try electric shock, hydrotherapy, and drugs, along with psychoanalysis.

Originally released as a motion picture in 1948. Based on the novel by Mary Jane Ward. Special features include commentary by film historian and author Aubrey Solomon; movietone news: "N.Y. film critics honor Olivia de Havilland," "National Magazines Make Film Awards," "Showmen Honor 'The Snake Pit'," "Special film award is presented for 'The Snake Pit'," "Motion Picture Academy Awards film 'Oscars'"; still gallery; theatrical trailer.