A movie director is approached by his old math teacher with a great movie idea: the Devil declares that the Earth is hell. The director rejects the idea, but subsequent events in the life of a writer, a friend of the director's, and a young prostitute he loves seem to prove the math teacher's idea.《监狱》是英格玛·伯格曼于1949 年在瑞典 导演，由多丽丝·斯韦德隆德,比耶·马尔姆斯滕,埃娃·亨宁,哈塞·埃克曼,斯蒂格·奥林,伊尔玛·克里斯滕松等出演,剧中使用瑞典语对白,是一部剧情片电影。