Dora... la frénésie du plaisir (1976)

Barbara and Jacques, a couple of Parisians have a dull marriage and are in search of new sensations. They travel to Africa for hunting. There they are met by a handsome hunting guide, Olivier and his lover Dora. Sexually dissatisfied Barbara embark a lot of sexual relations with the help and consent of her husband. Dora tries to win back her lover by witchcraft when Oliver and Barbara fall in love.