A woman starts exhibiting increasingly disturbing behavior after asking her husband for a divorce. Suspicions of infidelity soon give way to something much more sinister. Filmed amidst the oppressive backdrop of the Berlin Wall by the expatriate Polish director Andrzej Żuławski, the film was in competition at Cannes, where Isabelle Adjani was awarded Best Actress for her performance. Special effects artist Carlo Rambaldi created the tentacle creature featured in the film.