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Usually cast as secret agent/private eye Lemmy Caution, Eddie Constantine plays "Eddie" in The Empire of Night. This time, Constantine is a cabaret singer at odds with a criminal gang. When the villains try to take over every nightclub in town for their own nefarious purposes, Eddie sings a new tune with his fists. The story takes several unexpected turns, but Constantine remains in charge throughout. This French production was originally released as L'Empire de la Nuit.