В 1967 году Осима ставит фильм "Исследование непристойных песен Японии", выявляющий связь между сексуальными запретами и воображением. Фильм считается «верстовым столбом японского киноавангарда». A group of provincial high school students, in Tokyo fortheir university entrance examinations, are thoroughly disillusioned with theolder generation and see no hope for the future. They respond by going around singing dirty songs. A Korean prostitute teaches them that these songs are not only funny - they can be sad as well. Their fantasies have been center in garo und a rich girl they have seen. Now, still in fantasy, they set about killing her.