Beyond the Door is a 1974 supernatural horror film directed by Ovidio G. Assonitis and Roberto Piazzoli, and starring Juliet Mills, Gabriele Lavia, and Richard Johnson. The plot follows a San Francisco housewife who becomes demonically possessed in the midst of a pregnancy. The film was a co-production between the United States and Italy. It was released in the United Kingdom in an extended cut under the title Devil Within Her.
