An old couple, Eugenie and Armand, have been living in Paris since 1921 part of the wave of post-war immigration from Martinique. Eugenie, a former dancer with Josephine Baker's Black Revue has become a professional quimboiseuse (practising black magic) for a white clientele. Armand who had been a servant is retired. Now they are both old and bitter and still quarreling with each other. One day they set out, arm-in-arm for a last promenade in the metropolis.

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