Edouard Binet, an aimless Frenchman, has been travelling in North Africa for a few years, and is crusing to Belgium. En route, he meets Sylvie Baron. He introduces her to Nemrod Lobetoum, a wealthy Egyptian carrying priceless jewellery, and Sylvie and Nemrod turn into mates. Their friendship escalates to like, which makes Edouard jealous. Days later, Edouard arrives at a rooming home owned by Mme. Louise Baron, Sylvie's mom, sporting blood-stained garments. It seems that Nemrod was killed on a practice after he arrived in France, however Edouard denies any information of what occurred. Sylvie suspects that Edouard is answerable for Nemrod's demise, however by now her mom has turn into Edouard's ally.