Daughters of Darkness (in France, Les Lèvres Rouges, in Belgium, Le Rouge aux Lèvres (the former literally translated as The Red Lips and the latter as The Red on the Lips) and in the Netherlands, Dorst Naar Bloed (meaning Blood Thirst) is a 1971 Belgian horror film (with dialogue in English), directed by Harry Kümel. It is an erotic vampire film.