Chi sei? was released in the year 1974。Chi sei? is also called as Wer bist Du?, The Devil Within Her, Poder maléfico, Espírito Maligno, Démon aux tripes, Beyond the Door, Beyond Obsession, Who Are You?, Behind the Door。
Juliet Mills plays a pregnant woman who becomes possessed by a demon and begins puking split pea soup all over the place. Ex-boyfriend Richard Johnson shows up to save the day.