In a mythical North African kingdom, Emir Abd-en-Nacer (Léon Mathot), whose favorite concubine is enamored of a married French engineer. In retaliation, the Emir throws the engineer's wife into prison and abducts the couple's young son. The child will be returned unharmed if the wife agrees to spend the night with the Emir -- the ruler's own version of "an eye for an eye." At the moment of truth, however, the Emir is so moved by the wife's courage that he decides not to seduce her. Instead, he persuades her to convince her husband that the seduction has taken place, so that the philandering hubby will have learned his lesson.